audio: Add StreamWorker to aidl/common am: 614e4b5f am: 50970c04 am: 10ec4cde am: 734842e0

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2197180



Change-Id: I6be01935b23339a9fc1190d0ca863fc140c15a8a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>