Merge "audio: save vndbinder threads" am: 26ebfab53f am: 79262a2456

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2434045

Change-Id: Ieb119e38498af4b8f180a0057ffbe236ff31a6ea
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>