Limit check containers to reconfigure action

Genconfig doesn't require running containers or even docker installed.
This caused issues in kolla-k8s gates. Let's limit this task to
reconfigure.

Change-Id: I41265ea8d255aca59d73c1582486ed1e7885a829

ansible/roles/glance/tasks/config.yml

@@ -70,6 +70,7 @@
   when:
     - inventory_hostname in groups[item.value.group]
     - item.value.enabled | bool
+    - action != "genconfig"
   with_dict: "{{ glance_services }}"
   notify:
     - Restart glance-api container

ansible/roles/memcached/tasks/config.yml

@@ -29,4 +29,5 @@
   when:
     - inventory_hostname in groups[service.group]
     - service.enabled | bool
+    - action != "genconfig"
   notify: Restart memcached container