drm/msm/sde: move idle power collapse work to display thread

Resolve race conditions between the display thread and the idle
power collapse work by moving idle power collapse work items to
the CRTC's display thread which serializes the operations.

Change-Id: I6b8c4a7a0fc628cf4667b52990fcb276f844cec8
Signed-off-by: Lloyd Atkinson <latkinso@codeaurora.org>
1 file changed