drm/mediatek: add mutex sof into ddp private data

mutex sof will be ddp private data

Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
Signed-off-by: CK Hu <ck.hu@mediatek.com>
This commit is contained in:
Yongqiang Niu 2019-08-29 22:50:31 +08:00 • committed by CK Hu
commit 1c7da0c762