Merge "Make Keyguard window focusable so that adb shell input command registers" into rvc-dev am: a5894a79 am: d183e7d2

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11333846

Change-Id: I55878649e00823b8fe73805f8c02d39caf715037