Add missing advertise-address flag to Kubeadm config, so it's passed to api-server (#11387)

roles/kubernetes/control-plane/templates/kubeadm-config.v1beta3.yaml.j2

@@ -127,6 +127,7 @@ apiServer:
     anonymous-auth: "{{ kube_api_anonymous_auth }}"
 {% endif %}
     authorization-mode: {{ authorization_modes | join(',') }}
+    advertise-address: {{ kube_apiserver_address }}
     bind-address: {{ kube_apiserver_bind_address }}
 {% if kube_apiserver_enable_admission_plugins | length > 0 %}
     enable-admission-plugins: {{ kube_apiserver_enable_admission_plugins | join(',') }}