drm/msm/sde: move lut cfg to crtc state

Current lut data parsing is done based on the assumption that
it will be sent only once. Treating lut property like any other,
moving lut cfg to crtc state. Also, added reconfiguration of
destination scaler block on power collapse (idle/suspend).

Change-Id: I1f16924e6b9a6b734da6584d4f55fdbf07a4e1d5
Signed-off-by: Sravanthi Kollukuduru <skolluku@codeaurora.org>
Signed-off-by: Steve Cohen <cohens@codeaurora.org>