Add active services count callback to lazy HALs. am: 57341bb19f am: e26268e44c am: e0016e9edd

Original change: https://android-review.googlesource.com/c/platform/system/libhidl/+/1513376

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Iac7b38840fa8e0f9beeef0547215c88c849d7482