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

[automerger skipped] Merge "gav1: Support monochrome videos/images" into sc-dev am: 6a7bbeed am: f1479e1c -s ours

am skip reason: Merged-In I87eb5e11ab8bd88d4d3baf8d59c3bc53398b288d with SHA-1 e7718810 is already in history

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

Change-Id: I8ad39516d80199404dce59b99e453e1200cb227f