audio: Fix the lifetime of the StreamWorker's logic part am: 0b9c5feed1 am: 4b279d6a32 am: 231ca12ce8

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2199345

Change-Id: I3d2d99dbe43fc36cffb25811b2f2d79201943bea
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>