Merge "Implement waiting for IPv4 address for an interface" am: 8bfa197e89

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/19379016

Change-Id: Ibea1dd3f9c41c3a8adfa4c95ed88e40102674b89
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>