Merge "Update doc for PERF_VEHICLE_SPEED" into sc-dev am: ad33f38c

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/13591481

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Idfe2f281cbbdf0a423b7c58423845d5a4bdb5278