Update native getDisplayDecorationSupport API

I27f119f927b23052c5fd8f068cbca75338fe7b91 adds new HAL APIs which
provide more detailed info regarding DISPLAY_DECORATION support. Call
the new API and plumb it up to SurfaceComposerClient.

Remove reference to old DisplayCapability.DISPLAY_DECORATION.

Bug: 216644902
Test: manual
Change-Id: I961051c0a660b596039ac04b546040764ee20d34