[Why]
We want to trigger atomic check on connector when
DSC debugfs properties are changed. The previous
method was reverted because it accessed connector
properties unsafely and would also heavily
impact performance.

[How]
Add a flag for forcing DSC update in CRTC state
and add connector to the state if the flag is set.
Signed-off-by: NEryk Brol <eryk.brol@amd.com>
Reviewed-by: NNicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: NQingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>