[L] Change in coreboot[master]: soc/mediatek/mt8188: Add GPIO driving functions

[jason-ch chen (Code Review)]

Attention is currently required from: Hung-Te Lin, jason-ch chen.

Hello Hung-Te Lin, build bot (Jenkins), Rex-BC Chen, Yu-Ping Wu, Yidi Lin,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/74063

to look at the new patch set (#7).

Change subject: soc/mediatek/mt8188: Add GPIO driving functions
......................................................................

soc/mediatek/mt8188: Add GPIO driving functions

Add GPIO driving functions to adjust pin driving.

This implementation is according to chapter 5.2 in MT8188 Functional
Specification.

BUG=b:270911452
TEST=build pass

Change-Id: I87cb8dc00c90fd5b3c0b8bdf5acb92b6f7393a73
Signed-off-by: Jason Chen 
---
M src/soc/mediatek/mt8188/gpio.c
1 file changed, 265 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/63/74063/7