Merge "AudioFlinger: update primaryPlaybackThread_l() getter" into main am: fb33d06474

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/3145477

Change-Id: Id5afd710f9feb980d4ecfb5517673cfcf8dacb99
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>