Update ASB configmap to set namespace

roles/ansible_service_broker/templates/configmap.yaml.j2

@@ -31,6 +31,7 @@ data:
       host: ""
       ca_file: ""
       bearer_token_file: ""
+      namespace: openshift-ansible-service-broker
       sandbox_role: {{ ansible_service_broker_sandbox_role }}
       image_pull_policy: {{ ansible_service_broker_image_pull_policy }}
       keep_namespace: {{ ansible_service_broker_keep_namespace | bool | lower }}