mb/google/kohaku: Use level trigger for touchscreen interrupt
Level trigger is recommended setting for touchscreen interrupt of
kohaku, so we would change it as the recommedation.
BUG=b:
139179200
BRANCH=none
TEST=Verified touchscreen works on kohaku
Change-Id: Ibbcdbe3ab555d014048f66ff527e539c5b566187
Signed-off-by: Seunghwan Kim <sh_.kim@samsung.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34898
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>