This makes the flow for GPIO initialization more closely follow that
what is performed for other boards so that it's easier to read the flow
(and stops relying on BS_WRITE_TABLES).
BUG=b:72875858
TEST=Built and booted grunt, built gardenia.
Change-Id: Ic97db96581a69798b193a6bdeb93644f6a74fc9d
Signed-off-by: Justin TerAvest <teravest@chromium.org>
Reviewed-on: https://review.coreboot.org/23679
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>