audio: Refactor configuration population am: a92039ac48

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2886670

Change-Id: I3594561197a36aa377816458ab1a324ee61410da
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>