Merge "wifi(vts): Use blocking getService to wait for service to come up" into...

Merge "wifi(vts): Use blocking getService to wait for service to come up" into rvc-dev am: 5afe29b2 am: 1bf88e14 am: fbefe777

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/12204704

Change-Id: I150778514aab18844d9801a43b6b756b54b83e6c