[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: 10ff998e -s ours am: 0809e6ac -s ours

am skip reason: skipped by user jzern

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

Change-Id: Ic6a489c1494ef9a589cd705de51e63143bde4862