SurfaceControl: Add a hidden API to get display color primaries

Add a hidden API, getDisplayNativePrimaries(), used to get the
coordinates of a display's native color primaries.
At this time, the implementation of this API supports only a single
internal panel.

Bug: 123104704
Change-Id: Ie8910f34a59fa6d50b526ddb5ce799d5de82857b
2 files changed