mb/google/sarien: Disable S5 wake on LAN by default

Chromebook doesn't require support wake on LAN in S5.
Disable it by default for power saving.

BUG=b:131571666
TEST= check LAN indicator is off under S5

Signed-off-by: Eric Lai <ericr_lai@compal.corp-partner.google.com>
Change-Id: Ia90c9d2f3ea9b3580e9a7bbfb47c917dd51e3c03
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32502
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lijian Zhao <lijian.zhao@intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>

src/soc/intel/cannonlake/chip.h

@@ -400,6 +400,10 @@ struct soc_intel_cannonlake_config {
 
 	/* Unlock all GPIO Pads */
 	uint8_t PchUnlockGpioPads;
+
+	/* Enable GBE wakeup */
+	uint8_t LanWakeFromDeepSx;
+	uint8_t WolEnableOverride;
 };
 
 typedef struct soc_intel_cannonlake_config config_t;