Fixing xos-ws configuration

Change-Id: I7f996debbb97a0f179201567287fa0a9b6768103
diff --git a/xos-gui/templates/_ws.tpl b/xos-gui/templates/_ws.tpl
index 00fd8a9..0975fe0 100644
--- a/xos-gui/templates/_ws.tpl
+++ b/xos-gui/templates/_ws.tpl
@@ -15,8 +15,8 @@
 */ -}}
 
 {{- define "xos-ws.gateway_config" }}
-gateway_config:
-  default:
+default:
+  kafka_bootstrap_servers: {{ .Values.platformKafka | quote }}
   xos:
     host: xost
     port: 9000