audio: Preserve 'usecase' for in IModule::setAudioPortConfig am: b06a492bd9

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2992650

Change-Id: Id74c665a92bfdac50357519ee2e45ac6ca03eeb8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>