Merge "Move PowerStatsLogger off of the main thread." am: 19041e21ab am: a4b7960b60 am: 7c7930e536 am: a3426965e2

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1937410

Change-Id: If85c2cc2697056256b440b2e5db89cf035a8f2e8