[automerger skipped] audio: add spatializer output flag am: b626d67c94 -s ours

am skip reason: Merged-In Iad181e109a9729ddc2f80940b17cb29d9fb2115a with SHA-1 e28c66d3a0 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/16809882

Change-Id: I3dd0ec7bf8bfaf9b0652a46de31efe6a56ef765c