soc/intel/apollolake: make gpo.h ACPI compatible

BUG=None
TEST=Build with <soc/gpio.h> included in mainboard.asl

Change-Id: Id6fdc50d09c014f930fdfd5c2fde0df827ad5181
Signed-off-by: Freddy Paul <freddy.paul@intel.com>
Reviewed-on: https://review.coreboot.org/15272
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
1 file changed