Revert "Effect AIDL: remove placeholder effect from default implementation" am: 530235c8dc

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2995278

Change-Id: I529812232c5c7160919ef5a0d133b5b75099c098
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>