sb/intel/common/spi: Add Baytrail/Braswell support

The mechanism for getting the SPIBAR is little different.

Tested on Intel Minnowboard Turbot.

Change-Id: Ib14f185eab8bf708ad82b06c7a7ce586744318fd
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36342
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
diff --git a/src/southbridge/intel/common/Kconfig b/src/southbridge/intel/common/Kconfig
index 18bcd2e..d1b6bf6 100644
--- a/src/southbridge/intel/common/Kconfig
+++ b/src/southbridge/intel/common/Kconfig
@@ -24,6 +24,18 @@
 	select SPI_FLASH
 	select BOOT_DEVICE_SUPPORTS_WRITES
 
+config SOUTHBRIDGE_INTEL_COMMON_SPI_ICH7
+	def_bool n
+	select SOUTHBRIDGE_INTEL_COMMON_SPI
+
+config SOUTHBRIDGE_INTEL_COMMON_SPI_ICH9
+	def_bool n
+	select SOUTHBRIDGE_INTEL_COMMON_SPI
+
+config SOUTHBRIDGE_INTEL_COMMON_SPI_SILVERMONT
+	def_bool n
+	select SOUTHBRIDGE_INTEL_COMMON_SPI
+
 config SOUTHBRIDGE_INTEL_COMMON_PIRQ_ACPI_GEN
 	def_bool n