Merge "Use string notifications_disabled instead of off" into udc-dev am: 83c04b32 am: e6fe38f8

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/22938598



Change-Id: Id6d5832f086b4ca773f90a1a53a2fbc3811888c8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>