google/kukui: Configure EMMC

Set up EMMC gpios for payloads.

BUG=b:80501386
BRANCH=none
TEST=Boots correctly on Kukui

Change-Id: I1e7ee9bfe3a26ed04374e8c74243f48552a1d254
Signed-off-by: Tristan Shieh <tristan.shieh@mediatek.com>
Reviewed-on: https://review.coreboot.org/28546
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
1 file changed