Include etcd image repository when using kubeadm etcd deployment mode (#5725)

roles/download/templates/kubeadm-images.yaml.j2

@@ -8,11 +8,17 @@ kind: ClusterConfiguration
 imageRepository: {{ kube_image_repo }}
 kubernetesVersion: {{ kube_version }}
 etcd:
+{% if etcd_kubeadm_enabled %}
+  local:
+    imageRepository: "{{ etcd_image_repo | regex_replace("/etcd$","") }}"
+    imageTag: "{{ etcd_image_tag }}"
+{% else %}
   external:
       endpoints:
 {% for endpoint in etcd_access_addresses.split(',') %}
       - {{ endpoint }}
 {% endfor %}
+{% endif %}
 dns:
   type: CoreDNS
   imageRepository: {{ coredns_image_repo | regex_replace('/coredns$','') }}