Merge "Only use the gainmap shader if we might need it" into main am: 5c8faa65 am: b996ccef

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2833770



Change-Id: I614897dd268b4f9700d7d840d809b13368dc8d66
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>