sdm: Add custom YUV2RGB CSC path for Dolby Vision tone mapping

Introduce a custom YUV2RGB CSC to be used in certain Dolby Vision
tone mapping use cases. This CSC matrix is needed to properly
perform tone mapping of some Dolby Vision profiles.

Change-Id: Ia71f9bce15eb8ed4c5b8dfc3bca4b4b53eba7416
3 files changed