Add GPIO IOMUX defines for the pins that are used in the mainboard code
which enables using the PAD_GPI and PAD_GPO macros.
TEST=Timeless build for APU2/3/4/5 results in identical binary.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Ie32df9ed2cb6a5670a29cff91e085a3585c8bcf7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56836
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michał Żygowski <michal.zygowski@3mdeb.com>