mainboard/google/kahlee: Add Baseboard GPIOs

Add initial baseboard GPIOs based on grunt schematics.

BUG=b:69305596
TEST=Build grunt

Change-Id: I4efcee7dbf54fb9ea82e5e9394db805bb69203c8
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/22546
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marc Jones <marc@marcjonesconsulting.com>
2 files changed