Update AIDL IVibrator manifest version to 2. am: add7761be6 am: 720304b490 am: 7001e2f055

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1540633

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Id337789df340730cabcea459cd7dec4a3f7fcf71