add wait to multinode restart test
add wait to multinode restart test

dalehamel/minikube,warmchang/minikube,kubernetes/minikube,warmchang/minikube,dalehamel/minikube,warmchang/minikube,warmchang/minikube,kubernetes/minikube,warmchang/minikube,kubernetes/minikube,warmchang/minikube,kubernetes/minikube,kubernetes/minikube,warmchang/minikube,kubernetes/minikube,dalehamel/minikube,kubernetes/minikube