Add string for auto data siwtch notification am: 579d37f3 am: c8d68486

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2468740



Change-Id: I1a5425f0ffdc3407f3341c58c81876779ad57e05
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>