Merge "HapticGenerator: Add AIDL placeholder implementation and vts test" am: 02823d7040

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

Change-Id: Id3af1746897aa920434949bfa5b22826f02a84be
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>