Merge "libaudiohal@aidl: Implement effects adding/removal" am: 7f840ed0a8

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/2627045

Change-Id: Id44d10fb755f8492b90e2df0e276e44570babd40
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>