audio: Facilitate extension of Module class by vendors am: 57f0dcf78d am: 9e3b3d013a am: e65c2a2c72

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2639432

Change-Id: If8dc3e61a15f79467f9f40644db95f8d8895dbe9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>