google/reef: copy gpio.c for coral

It requires changes to match the hardware. Except for the weak
attributes that are now removed in coral's copy, the file is identical
to the baseboard version.

BUG=b:63876329
BRANCH=none
TEST=none

Change-Id: Ib0c5f0ecae9919f20631dacef0253416989fb011
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/20751
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

0 files changed, 0 insertions, 0 deletions