soc: mediatek: add mtk mutex support for MT8183

Add mtk mutex support for MT8183 SoC.

Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Link: https://lore.kernel.org/r/20210129092209.2584718-8-hsinyi@chromium.org


Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>