Add merge mute/unmute setting for MT8195.
MT8195 Vdosys1 merge1~merge4 support HW mute function.
Signed-off-by: NNancy.Lin <nancy.lin@mediatek.com>
Reviewed-by: NAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: NAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: NBo-Chen Chen <rex-bc.chen@mediatek.com>
Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20220620091930.27797-7-nancy.lin@mediatek.com/Signed-off-by: NChun-Kuang Hu <chunkuang.hu@kernel.org>