Merge "Guard FallbackHome activity behind permission" into tm-qpr-dev am: 7b63700b0b am: 9b1ccbcb74

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/20064643

Change-Id: Iadbfa43226e0bbc4dc87525437148b6c6b53e848
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>