Merge "AudioFlinger: Unify spatializer behavior with normal mixer thread" into tm-dev am: 1fad7fe3 am: 8fbd0a66 am: 334edd2d am: 6e9cb22b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/18085162



Change-Id: Id8f5626496cc5ab3a038cf75965882364ed7705c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>