Set fixed fps when ambient or display brightness is high

Force the display to stay at fixed fps when ambient and
display brightness are high.

Bug: 166581675
Test: atest DisplayModeDirectorTest
Test: no fps transition in the blocking zone
Change-Id: Idf0dfe0b9ef907a4158f36f6dfda19286206fb3f
Merged-In: Idf0dfe0b9ef907a4158f36f6dfda19286206fb3f
13 files changed