[SurfaceControl] Add API to query composition color spaces.

To facilitate the need of returning color spaces about the composition
pipeline, add an API to query this information. This API will be used by Canvas
and Display, etc.

BUG: 120904891
Test: Build, flash and boot. Verify by checking returned values.
Change-Id: I97123ba1488ca76888a4c004128b4100a7c1f76c
2 files changed