Merge "wifi(vts): Use blocking getService to wait for service to come up" into rvc-dev am: 5afe29b2 am: 8a3f8fcb am: 313776f4 am: 2a3138e3

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

Change-Id: Ifd7b615e9fac7a60052491dc5a5fd0fa289a573e