Merge "Add OWNERS file to AM test helper app" am: 958a1ab393 am: b59b8b0040

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1627139

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I454c3973a6cd3f5847754240448aaea7f5f74d4b