src/ec: Use SPDX for GPL-2.0-only files

Done with sed and God Lines. Only done for C-like code for now.

Change-Id: I422d072a9ab3350e364004ba34911cd183fc6612
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40052
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
diff --git a/src/ec/compal/ene932/acpi/ac.asl b/src/ec/compal/ene932/acpi/ac.asl
index 88330ea..5d96945 100644
--- a/src/ec/compal/ene932/acpi/ac.asl
+++ b/src/ec/compal/ene932/acpi/ac.asl
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 // Scope (EC0)
 
diff --git a/src/ec/compal/ene932/acpi/battery.asl b/src/ec/compal/ene932/acpi/battery.asl
index 878bcda..2014dec 100644
--- a/src/ec/compal/ene932/acpi/battery.asl
+++ b/src/ec/compal/ene932/acpi/battery.asl
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 // Scope (EC0)
 
diff --git a/src/ec/compal/ene932/acpi/ec.asl b/src/ec/compal/ene932/acpi/ec.asl
index 4db43f6..fbf533d 100644
--- a/src/ec/compal/ene932/acpi/ec.asl
+++ b/src/ec/compal/ene932/acpi/ec.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 /*
  * The mainboard must define a PNOT method to handle power
diff --git a/src/ec/compal/ene932/acpi/superio.asl b/src/ec/compal/ene932/acpi/superio.asl
index 21d29168..6cbe94f 100644
--- a/src/ec/compal/ene932/acpi/superio.asl
+++ b/src/ec/compal/ene932/acpi/superio.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 // Scope is \_SB.PCI0.LPCB
 
diff --git a/src/ec/compal/ene932/chip.h b/src/ec/compal/ene932/chip.h
index 8dedfee..1d11b74 100644
--- a/src/ec/compal/ene932/chip.h
+++ b/src/ec/compal/ene932/chip.h
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef _EC_COMPAL_ENE932_CHIP_H
 #define _EC_COMPAL_ENE932_CHIP_H
diff --git a/src/ec/compal/ene932/ec.c b/src/ec/compal/ene932/ec.c
index f6691cd..8eebfa8 100644
--- a/src/ec/compal/ene932/ec.c
+++ b/src/ec/compal/ene932/ec.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <console/console.h>
 #include <device/device.h>
diff --git a/src/ec/compal/ene932/ec.h b/src/ec/compal/ene932/ec.h
index ba78cdd..fa3e3dc 100644
--- a/src/ec/compal/ene932/ec.h
+++ b/src/ec/compal/ene932/ec.h
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 /*
  * EC communication interface for COMPAL ENE932 Embedded Controller.