apiserver: Update genericapiserver to panic on listener error
apiserver: Update genericapiserver to panic on listener error

Previously runServer would try to listen again if a listener error
occurred.  This commit changes the response to a panic to allow a
process manager (systemd/kubelet/etc) to react to the failure.

Kubernetes-commit: 30fb3be4d29179cf551e3030ade37d94d9acc8c9

caesarxuchao/apiserver,caesarxuchao/apiserver,kubernetes/apiserver,caesarxuchao/apiserver,kubernetes/apiserver