Destroy EGL context on colorfade.stop

- Create colorfade.stop
- Call when we destroy a dpc / display power state

Bug: 294800371
Test: atest DisplayServiceTests
Change-Id: I60226f55a8d819c6f74e1dcc782b9c4201dcba4b
Merged-In: I60226f55a8d819c6f74e1dcc782b9c4201dcba4b
7 files changed