[automerger skipped] Merge "libaudiohal: Make effect descriptors cache thread-safe" am: a4c2235bfb -s ours

am skip reason: Merged-In Id5f3615074e540afca33a83d53d2b84634df89cf with SHA-1 2b9611eade is already in history

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/2329975

Change-Id: I22aa911ae9a0bdcbd1d646585a33e21125a314a6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>