mb/google/skyrim: Configure RO and RW SPL files

This will help to integrate RO SPL table in RO partitions such that it
is used before PSP verstage is loaded. After PSP verstage, SPL table in
RW partition gets used.

BUG=b:243470283
TEST=Build Skyrim BIOS image and boot to OS.

Change-Id: Ic2061f66381d7e9a8018e6f28aa0bc2ca6010f6f
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70777
Reviewed-by: Jon Murphy <jpmurphy@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/google/skyrim/Kconfig b/src/mainboard/google/skyrim/Kconfig
index 53cdce2..f171b9f 100644
--- a/src/mainboard/google/skyrim/Kconfig
+++ b/src/mainboard/google/skyrim/Kconfig
@@ -64,6 +64,15 @@
 config SPL_TABLE_FILE
 	string
 	depends on HAVE_SPL_FILE
+	default "3rdparty/blobs/mainboard/google/skyrim/TypeId0x55_SplTableBl_MDN_CHROME_RO.sbin"
+
+config HAVE_SPL_RW_AB_FILE
+	bool
+	default y
+
+config SPL_RW_AB_TABLE_FILE
+	string
+	depends on HAVE_SPL_RW_AB_FILE
 	default "3rdparty/blobs/mainboard/google/skyrim/TypeId0x55_SplTableBl_MDN_CHROME.sbin"
 
 config FMDFILE