[automerger skipped] Merge "audio: Clarify comments on AudioPortMixExt fields" am: 58e6e6d448 am: cc304e90cf am: 94cbc8191f am: 4965ef5e89 am: abf6fb9958 -s ours

am skip reason: Merged-In Ia212fef049778a85046e3333faa0ddf8fe167c1f with SHA-1 52ca76ed07 is already in history

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2191216

Change-Id: I907d7188a48aee1e6fd1195fc3cf6a52a9ab1397
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>