Merge "Use background call for BatteryController#init()" into tm-dev am: 756f7b4e am: 385b8d2b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17623676



Change-Id: Ie236859b3a52a80212351bd78cc6a6bfbba638f7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>