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: Id89eaf690c180afc631b0f34c74b1e5609dfb39f