Merge "[play] Add feature flag for play." into tm-qpr-dev am: 25606600

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/21077874



Change-Id: Iee2ab5050c23f89654a59e47563e2a894a4e1a2e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>