Merge "AdbService sends callback on adb debugging enabled / disabled." am: 6efa908b95 am: 870e9c266b am: c978bf0e0a

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1775965

Change-Id: I4e46d29429188ed5d7d1210062a0d63f21ea8766