Plumb through dimming stage into RenderEngine.

If HWC is requesting that dimming happens after OETF is applied, then
apply the dimming matrix as part of the display color transform

Bug: 218954037
Test: Toggle client composition in adaptive color mode during HDR
playback

Change-Id: Ib72f3f4b6dfcced02fc330e64fa72546a18fb608
Merged-In: Ib72f3f4b6dfcced02fc330e64fa72546a18fb608