Merge "HapticGenerator: Add AIDL placeholder implementation and vts test" am: 02823d7040 am: 6c7ba1f3f7 am: 527c20700e

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2311626

Change-Id: I101234c3fab633e7a69de3e3c1502ed151dd7e52
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>