feat(mt8196): add GPIO support

- MT8196 has 271 GPIO pins. Therefore, update id to a proper datatype.
- Add GPIO support for MT8196.

Signed-off-by: Cathy Xu <ot_cathy.xu@mediatek.com>
Change-Id: I283939684b54f79d1bba02f38e047e756a56f0c9
5 files changed