Merge "Method to override feature flag" into tm-qpr-dev am: fb9c4d25c4

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/21306841

Change-Id: Id86fb6421ae6bd3eb5bf020bf07fbe71107e54aa
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>