Merge "wifi(vts): Use blocking getService to wait for service to come up" into rvc-dev am: 5afe29b247 am: 1bf88e14c3 am: 3f0e9f7c76

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

Change-Id: I8ceef94040f34064776e854414aaca42656e163b