mb/google/dedede: Enable S0ix support

Change-Id: I4cadfe69e36f959b54e374800c32629a7481ea94
Signed-off-by: Aamir Bohra <aamir.bohra@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41060
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>

src/mainboard/google/dedede/variants/baseboard/devicetree.cb

@@ -119,6 +119,9 @@ chip soc/intel/jasperlake
 	# SD card power enable polarity
 	register "SdCardPowerEnableActiveHigh" = "1"
 
+	# Enable S0ix support
+	register "s0ix_enable" = "1"
+
 	# Display related UPDs
 	# Select eDP for port A
 	register "DdiPortAConfig" = "1"