soc: mediatek: mmsys: Add sw0_rst_offset for MT8192

MT8192 has the same sw0 reset offset as MT8186: add the parameter
to be able to use mmsys as a reset controller for managing at
least the DSI reset line.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Link: https://lore.kernel.org/r/20220323091932.10648-1-angelogioacchino.delregno@collabora.com


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