sdm: Set default CSC to 601FR

- As per the recommendation from the systems team change
  the default CSC for Layer to 601FR
- Move csc and igc from Layer to LayerBuffer as its the
  property of the buffer.
- Set the corresponding CSC to the write back output
  buffer interface

Change-Id: Ida84f9300dbef70dea1c96815ac4cdfd2222e974
CRs-fixed: 1010566
7 files changed