Merge changes I2d140b32,Id59ae926,I31c71551 into integration

* changes:
feat(mt8189): add GPIO support
feat(mt8189): initialize platform for MT8189
refactor(mediatek): move headers to common f

Merge changes I2d140b32,Id59ae926,I31c71551 into integration

* changes:
feat(mt8189): add GPIO support
feat(mt8189): initialize platform for MT8189
refactor(mediatek): move headers to common folder

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feat(mt8189): add GPIO support

- Add GPIO support for MT8189.

Change-Id: I2d140b32eef8c05aba9170bf4af894ed43d52978
Signed-off-by: Cathy Xu <ot_cathy.xu@mediatek.com>