Merge "vibrator: turn off vibrator after testing ChangeVibrationAmplitude" am: 05eb1a279b

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2104024

Change-Id: I016a1e46736fc84a024b379e369cdee044e0b57f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>