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

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

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I32ff0a5a2754ee4840a88b89c07c2c8a532a7c9d