Moved SPA UI to port 81

Change-Id: I8844ae9c0579ecb803be02c578bc301af6a4d124
diff --git a/frontend/ui_containers.yaml b/frontend/ui_containers.yaml
index 932831e..56b64a0 100644
--- a/frontend/ui_containers.yaml
+++ b/frontend/ui_containers.yaml
@@ -55,7 +55,7 @@
       properties:
         name: xos-spa-gui
         image: xosproject/xos-gui
-        ports: 80:80
+        ports: 81:81
 
     gui-to-gw:
       type: tosca.nodes.ComponentLink