Merge "wifi(vts): Use blocking getService to wait for service to come up" into rvc-dev am: 5afe29b247

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

Change-Id: I9d71e54e4c4056a1c6adfde2542ece0a708f2cd1