[automerger skipped] libaudiohal@aidl: Implement effects adding/removal am: 0a90b18c -s ours

am skip reason: Merged-In Ibb6d58222568057423579a05e0dca2b148f101f0 with SHA-1 a82a69d8 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/23732477



Change-Id: I99456054e7d444df79081edaecceced601eee1ec
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>