Merge "[Panlingual] Add a flag to control opt-in/out" into tm-dev am: aaf91230 am: 8a6837a7 am: f99124c9 am: 641c1724

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18161842



Change-Id: I44bc60d037728ea9d31b320376daac1f3a9e105a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>