SF: Support SolidColor layers in setUpHwComposer

Add code to program visibleRegion and color in setUpHwComposer

Test: Compile/Run manually
Merged-In: Ia7b5c28d51d81c28bfa48f3987300bf9ff20dfa4
Change-Id: Ia7b5c28d51d81c28bfa48f3987300bf9ff20dfa4
3 files changed