[automerger skipped] Merge "gav1: Support monochrome videos/images" into...

[automerger skipped] Merge "gav1: Support monochrome videos/images" into sc-dev am: 6a7bbeed -s ours

am skip reason: skipped by user jzern

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/15147616

Change-Id: Ia82fdb506a2a355153e318c4e0bd2f9f8ed38be1