Merge "Add method for testing lazy HALs active services count callback." am: 88c14d2b14 am: db670b93a3

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1538301

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I9c5c5ca5842a1d91a06c0ef8c3bc4ec9125b4ef2