Add canonical OWNERS file for device/google/atv am: edb9cab520 am: 7ffe76f72d

Original change: https://android-review.googlesource.com/c/device/google/atv/+/1545426

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ib72609dff864931bdb25e426b0a5b92a79860431