mb/google/dedede: Enable early EC software sync

BUG=none
BRANCH=none
TEST=Verify sysjump from EC console, EC sync in romstage in AP
     console and crossystem reflect ecfw_act as RW

Change-Id: Ief96fe481c94acef3754881cf1f453699fbfa52e
Signed-off-by: Meera Ravindranath <meera.ravindranath@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41396
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Maulik V Vaghela <maulik.v.vaghela@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/dedede/Kconfig

@@ -27,13 +27,13 @@ config CHROMEOS
 	bool
 	default y
 	select EC_GOOGLE_CHROMEEC_SWITCHES
-	select GBB_FLAG_DISABLE_EC_SOFTWARE_SYNC
 	select GBB_FLAG_FORCE_DEV_SWITCH_ON
 	select GBB_FLAG_FORCE_DEV_BOOT_USB
 	select GBB_FLAG_FORCE_DEV_BOOT_LEGACY
 	select GBB_FLAG_FORCE_MANUAL_RECOVERY
 	select HAS_RECOVERY_MRC_CACHE
 	select MRC_CLEAR_NORMAL_CACHE_ON_RECOVERY_RETRAIN
+	select VBOOT_EARLY_EC_SYNC
 	select VBOOT_LID_SWITCH
 
 config DEVICETREE