specify all logging index mappings for kibana

roles/openshift_logging_elasticsearch/templates/elasticsearch.yml.j2

@@ -38,6 +38,7 @@ gateway:
 io.fabric8.elasticsearch.authentication.users: ["system.logging.kibana", "system.logging.fluentd", "system.logging.curator", "system.admin"]
 io.fabric8.elasticsearch.kibana.mapping.app: /usr/share/elasticsearch/index_patterns/com.redhat.viaq-openshift.index-pattern.json
 io.fabric8.elasticsearch.kibana.mapping.ops: /usr/share/elasticsearch/index_patterns/com.redhat.viaq-openshift.index-pattern.json
+io.fabric8.elasticsearch.kibana.mapping.empty: /usr/share/elasticsearch/index_patterns/com.redhat.viaq-openshift.index-pattern.json
 
 openshift.config:
   use_common_data_model: true