mb/google/sarien: Update VBT for both variants

Arcada and Sarien use different VBTs in the current stock ChromeOS
firmware, so use the correct VBT for each. Files taken from images
Google_Sarien.12200.222.0.bin and Google_Arcada.12200.103.0.bin.

Change-Id: I0b07fadd34f84889c8bb186a9a22ed1bce36d6b1
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/86906
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>

src/mainboard/google/sarien/Kconfig

@@ -103,11 +103,6 @@ config VBOOT
 	select HAS_RECOVERY_MRC_CACHE
 	select VBOOT_LID_SWITCH
 
-# Override the default variant behavior, since the data.vbt is the same
-# for all variants.
-config INTEL_GMA_VBT_FILE
-	default "src/mainboard/\$(MAINBOARDDIR)/data.vbt"
-
 config FMDFILE
 	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/default.fmd" if !CHROMEOS