sdm: Add support for destination scalar in drm.

1) Add DRMOps for destination scalar.
2) Pass destination scalar data to DRM driver.
3) Add Scalar LUTs to CRTC during Init()
4) Disable PU when DS is enabled.

Change-Id: I5450b02c16e6d162fb0069c924dc2c9877834093
Crs-fixed: 2063894
8 files changed