Merge "Only use the gainmap shader if we might need it" into main am: 5c8faa654d

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

Change-Id: If1bf1359c86f43184e191fbe61f243d903c64bfb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>