curator config must be in /etc/curator not /usr/curator

roles/openshift_logging/templates/curator.j2

@@ -87,7 +87,7 @@ spec:
               mountPath: /etc/curator/keys
               readOnly: true
             - name: config
-              mountPath: /usr/curator/settings
+              mountPath: /etc/curator/settings
               readOnly: true
             - name: elasticsearch-storage
               mountPath: /elasticsearch/persistent