Merge "Clarify delay parameter documentation in VibrationEffect" am: 2b9f0c7623 am: cdbc51fa52

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1622280

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Iba4b8b136fae23b31a4f20ad54e66104876745b1