Merge "[Panlingual] Add a flag to control opt-in/out" into tm-dev am:...

Merge "[Panlingual] Add a flag to control opt-in/out" into tm-dev am: aaf91230 am: 4219739b am: f22ab3d6

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



Change-Id: I5e1d5b1aa626481d464a6aeded2f8e634e376cd4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>