LeAudio/multicodec: Fix the async data path getter API am: 4856308c50

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2897465

Change-Id: Ia647a7c4f5512be92bab856d83d1a0642a472251
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>