Add string for auto data siwtch notification am: 579d37f3

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



Change-Id: I5dffb2f2f537d14ca4c1c8b30e2bd9924b3951ca
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>