Audio AIDL : Add default value to params am: d7c6f32ddf

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2370616

Change-Id: Ia626938abbce6cd51edf41a99244eab6e3655e8e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>