Add OWNERS file to bluetooth/audio/utils am: ff9deb484c am: d809c434b5 am: 814c10a4ca

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1609314

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I1d760bcd69514370a2c4df0ddd684f83c52fae13