Merge "Make low battery warning notification dismissable" into tm-dev am: 5470b037

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18512408



Change-Id: I600ac4b6ce7d191697bb1368c844da9cf4f4c3ba
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>