Using new Ubuntu 1c 1g for xos gui unit tests

Change-Id: I8f06d9296a9ee15d53b9b29512573cf3a9dbe560
diff --git a/jjb/cord/cord-xos-gui-unit.yaml b/jjb/cord/cord-xos-gui-unit.yaml
index 749aa74..637dade 100644
--- a/jjb/cord/cord-xos-gui-unit.yaml
+++ b/jjb/cord/cord-xos-gui-unit.yaml
@@ -89,7 +89,7 @@
     project: xos-gui
 
     build-timeout: '10'
-    build-node: 'ubuntu16.04-basebuild-8c-15g'
+    build-node: 'ubuntu16.04-basebuild-1c-1g'
 
     stream:
       - 'master'