Merge "Effect AIDL: support output accumulate" into main am: 266e5578c4

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/3001425

Change-Id: Ifc6e3855954a2bcfcd876bbd51113613abb2661a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>