[automerger skipped] Sync BatteryStats user activity types with PowerManager ones. am: 4928d74f0d -s ours

am skip reason: Merged-In I234a999cf41da0346ce4d9f05663cae116b095a3 with SHA-1 20fde6c3b1 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19993024

Change-Id: I710c0e4c80d78adfc38bb76caf23366eb5537d52
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>