ec, lib, security, sb: Add SPDX license headers to Kconfig files

Change-Id: Ie63499a4b432803a78af1c52d49e34cf1653ba17
Signed-off-by: Martin Roth <gaumless@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80589
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/ec/acpi/Kconfig b/src/ec/acpi/Kconfig
index 1fa707a..81fc6f4 100644
--- a/src/ec/acpi/Kconfig
+++ b/src/ec/acpi/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config EC_ACPI
 	bool
 	help
diff --git a/src/ec/compal/ene932/Kconfig b/src/ec/compal/ene932/Kconfig
index a493aac..1be14d8 100644
--- a/src/ec/compal/ene932/Kconfig
+++ b/src/ec/compal/ene932/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config EC_COMPAL_ENE932
 	bool
 	help
diff --git a/src/ec/google/chromeec/Kconfig b/src/ec/google/chromeec/Kconfig
index 1a4dcdb..fb93b56 100644
--- a/src/ec/google/chromeec/Kconfig
+++ b/src/ec/google/chromeec/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config EC_GOOGLE_CHROMEEC
 	bool
 	select EC_SUPPORTS_DPTF_TEVT
diff --git a/src/ec/google/chromeec/audio_codec/Kconfig b/src/ec/google/chromeec/audio_codec/Kconfig
index 148a7a8..0df41b0 100644
--- a/src/ec/google/chromeec/audio_codec/Kconfig
+++ b/src/ec/google/chromeec/audio_codec/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 if EC_GOOGLE_CHROMEEC
 
 config EC_GOOGLE_CHROMEEC_AUDIO_CODEC
diff --git a/src/ec/google/chromeec/i2c_tunnel/Kconfig b/src/ec/google/chromeec/i2c_tunnel/Kconfig
index 2327255..194c648 100644
--- a/src/ec/google/chromeec/i2c_tunnel/Kconfig
+++ b/src/ec/google/chromeec/i2c_tunnel/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 if EC_GOOGLE_CHROMEEC
 
 config EC_GOOGLE_CHROMEEC_I2C_TUNNEL
diff --git a/src/ec/google/chromeec/mux/Kconfig b/src/ec/google/chromeec/mux/Kconfig
index 654ff82..08e4f82 100644
--- a/src/ec/google/chromeec/mux/Kconfig
+++ b/src/ec/google/chromeec/mux/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 if EC_GOOGLE_CHROMEEC
 
 config EC_GOOGLE_CHROMEEC_MUX
diff --git a/src/ec/google/common/Kconfig b/src/ec/google/common/Kconfig
index 2e138a5..2005ddb 100644
--- a/src/ec/google/common/Kconfig
+++ b/src/ec/google/common/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config EC_GOOGLE_COMMON_MEC
 	bool
 	help
diff --git a/src/ec/google/wilco/Kconfig b/src/ec/google/wilco/Kconfig
index f97fa26d..cc8368e 100644
--- a/src/ec/google/wilco/Kconfig
+++ b/src/ec/google/wilco/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config EC_GOOGLE_WILCO
 	bool
 	default n
diff --git a/src/ec/kontron/it8516e/Kconfig b/src/ec/kontron/it8516e/Kconfig
index 125dcef..5d146f1 100644
--- a/src/ec/kontron/it8516e/Kconfig
+++ b/src/ec/kontron/it8516e/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config EC_KONTRON_IT8516E
 	select EC_ACPI
 	bool
diff --git a/src/ec/kontron/kempld/Kconfig b/src/ec/kontron/kempld/Kconfig
index 08401c9..e0f3182 100644
--- a/src/ec/kontron/kempld/Kconfig
+++ b/src/ec/kontron/kempld/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config EC_KONTRON_KEMPLD
 	bool
 	select DRIVERS_UART_8250IO
diff --git a/src/ec/lenovo/h8/Kconfig b/src/ec/lenovo/h8/Kconfig
index 6311d54..b15657d 100644
--- a/src/ec/lenovo/h8/Kconfig
+++ b/src/ec/lenovo/h8/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config EC_LENOVO_H8
 	select EC_ACPI
 	bool
diff --git a/src/ec/lenovo/pmh7/Kconfig b/src/ec/lenovo/pmh7/Kconfig
index 27815bc..2e9426c 100644
--- a/src/ec/lenovo/pmh7/Kconfig
+++ b/src/ec/lenovo/pmh7/Kconfig
@@ -1,2 +1,4 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config EC_LENOVO_PMH7
 	bool
diff --git a/src/ec/purism/librem-ec/Kconfig b/src/ec/purism/librem-ec/Kconfig
index e7dc473..10b241f 100644
--- a/src/ec/purism/librem-ec/Kconfig
+++ b/src/ec/purism/librem-ec/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config EC_LIBREM_EC
 	bool
 	help
diff --git a/src/ec/quanta/ene_kb3940q/Kconfig b/src/ec/quanta/ene_kb3940q/Kconfig
index 9f2ddcf..c4f3eab 100644
--- a/src/ec/quanta/ene_kb3940q/Kconfig
+++ b/src/ec/quanta/ene_kb3940q/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config EC_QUANTA_ENE_KB3940Q
 	bool
 	help
diff --git a/src/ec/quanta/it8518/Kconfig b/src/ec/quanta/it8518/Kconfig
index 24ac36f..6f28068 100644
--- a/src/ec/quanta/it8518/Kconfig
+++ b/src/ec/quanta/it8518/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config EC_QUANTA_IT8518
 	bool
 	help
diff --git a/src/ec/smsc/mec1308/Kconfig b/src/ec/smsc/mec1308/Kconfig
index 15c6334..21effcc 100644
--- a/src/ec/smsc/mec1308/Kconfig
+++ b/src/ec/smsc/mec1308/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config EC_SMSC_MEC1308
 	bool
 	help
diff --git a/src/ec/system76/ec/Kconfig b/src/ec/system76/ec/Kconfig
index d1cd079..4b71912 100644
--- a/src/ec/system76/ec/Kconfig
+++ b/src/ec/system76/ec/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config EC_SYSTEM76_EC
 	bool
 	help
diff --git a/src/lib/Kconfig b/src/lib/Kconfig
index d11bf59..e896704 100644
--- a/src/lib/Kconfig
+++ b/src/lib/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config MISSING_BOARD_RESET
 	bool
 	help
diff --git a/src/security/intel/stm/Kconfig b/src/security/intel/stm/Kconfig
index 5286354..8f17748 100644
--- a/src/security/intel/stm/Kconfig
+++ b/src/security/intel/stm/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config STM
 	bool "Enable STM"
 	default n
diff --git a/src/security/lockdown/Kconfig b/src/security/lockdown/Kconfig
index 8d48beb..8de7979 100644
--- a/src/security/lockdown/Kconfig
+++ b/src/security/lockdown/Kconfig
@@ -1,4 +1,4 @@
-
+## SPDX-License-Identifier: GPL-2.0-only
 
 choice
 	prompt "Boot media protection mechanism"
diff --git a/src/southbridge/intel/common/Kconfig.common b/src/southbridge/intel/common/Kconfig.common
index e138f5e..c621399 100644
--- a/src/southbridge/intel/common/Kconfig.common
+++ b/src/southbridge/intel/common/Kconfig.common
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config SOUTHBRIDGE_INTEL_COMMON_RESET
 	def_bool n
 	select HAVE_CF9_RESET
diff --git a/src/southbridge/intel/i82371eb/Kconfig b/src/southbridge/intel/i82371eb/Kconfig
index 3f84668..f806764 100644
--- a/src/southbridge/intel/i82371eb/Kconfig
+++ b/src/southbridge/intel/i82371eb/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config SOUTHBRIDGE_INTEL_I82371EB
 	select ACPI_COMMON_MADT_IOAPIC if SMP
 	select ACPI_COMMON_MADT_LAPIC if SMP
diff --git a/src/southbridge/intel/i82870/Kconfig b/src/southbridge/intel/i82870/Kconfig
index b56113b..c1a4dc0 100644
--- a/src/southbridge/intel/i82870/Kconfig
+++ b/src/southbridge/intel/i82870/Kconfig
@@ -1,2 +1,4 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config SOUTHBRIDGE_INTEL_I82870
 	bool
diff --git a/src/southbridge/ti/pci1x2x/Kconfig b/src/southbridge/ti/pci1x2x/Kconfig
index 8442cc3..4fce500 100644
--- a/src/southbridge/ti/pci1x2x/Kconfig
+++ b/src/southbridge/ti/pci1x2x/Kconfig
@@ -1,2 +1,4 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config SOUTHBRIDGE_TI_PCI1X2X
 	bool