mb/google/skyrim: Enable CBFS Verification

Enable RO verification by GSC and CBFS verification.

BUG=b:227809919
TEST=Build and boot to OS in Skyrim with CBFS verification enabled using
x86 verstage and PSP verstage.

Change-Id: Idd22a521a913705af0d2aca17acd1aa069a77f29
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66948
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
diff --git a/src/mainboard/google/skyrim/Kconfig b/src/mainboard/google/skyrim/Kconfig
index cb1932f..e746af1 100644
--- a/src/mainboard/google/skyrim/Kconfig
+++ b/src/mainboard/google/skyrim/Kconfig
@@ -105,11 +105,6 @@
 	bool
 	default y if VBOOT && !VBOOT_STARTS_BEFORE_BOOTBLOCK
 
-# TODO: Remove once CBFS verification on AMD has been fixed.
-config VBOOT_GSCVD
-	bool
-	default n
-
 if !EM100	# EM100 defaults in soc/amd/common/blocks/spi/Kconfig
 config EFS_SPI_READ_MODE
 	default 2          # Dual IO (1-1-2)