Merge "Update battery saver footer string" into udc-dev am: f566e6de

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/22901659



Change-Id: I61fa48523f8462a156b13d63d14035edd1dc4c5d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>