mb/google/skyrim/baseboard/devicetree: enable S0ix

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Ia6c5b3f83b66a2d54611ada3cb97ddda4b655d00
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64606
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

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

@@ -55,6 +55,8 @@ chip soc/amd/sabrina
 
 	register "pspp_policy" = "DXIO_PSPP_DISABLED" # TODO: reenable when PSPP works
 
+	register "s0ix_enable" = "true"
+
 	device domain 0 on
 		device ref lpc_bridge on
 			chip ec/google/chromeec