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

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

Change-Id: I480f527cef71fbfe349129d95f94ac8507e8df2e