Bug 1524805- ServiceCatalog now works disconnected

Change imagePullPolicy for service catalog from Always to IfNotPresent,
      allowing service catalog to install in a disconnected setting

roles/openshift_service_catalog/templates/api_server.j2

@@ -49,7 +49,7 @@ spec:
         - OriginatingIdentity=true
         image: {{ openshift_service_catalog_image_prefix }}service-catalog:{{ openshift_service_catalog_image_version }}
         command: ["/usr/bin/service-catalog"]
-        imagePullPolicy: Always
+        imagePullPolicy: IfNotPresent
         name: apiserver
         ports:
         - containerPort: 6443

roles/openshift_service_catalog/templates/controller_manager.j2

@@ -44,7 +44,7 @@ spec:
 {% endif %}
         image: {{ openshift_service_catalog_image_prefix }}service-catalog:{{ openshift_service_catalog_image_version }}
         command: ["/usr/bin/service-catalog"]
-        imagePullPolicy: Always
+        imagePullPolicy: IfNotPresent
         name: controller-manager
         ports:
         - containerPort: 8080