arm64: dts: mediatek: Add mt8192 power domains controller

Add power domains controller node for SoC mt8192

Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com>
Signed-off-by: Chun-Jie Chen <chun-jie.chen@mediatek.com>
Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Link: https://lore.kernel.org/r/20210825010426.30303-1-chun-jie.chen@mediatek.com


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