Merge "Add fade in / out animation for battery usage hourly chart." into tm-qpr-dev am: 2a33c120

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/19897905



Change-Id: I78fd0896d72ab78b8a7ad676ae6c1beab3c260fe
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>