Lowering timeout for now on the openonugo tests

Change-Id: I3abaf6e02bd7f39c16c11a4e5b10c26cd93bde89
diff --git a/jjb/pipeline/voltha-dt-physical-functional-tests-openonu-go.groovy b/jjb/pipeline/voltha-dt-physical-functional-tests-openonu-go.groovy
index 19a416c..30071b7 100644
--- a/jjb/pipeline/voltha-dt-physical-functional-tests-openonu-go.groovy
+++ b/jjb/pipeline/voltha-dt-physical-functional-tests-openonu-go.groovy
@@ -23,7 +23,7 @@
     label "${params.buildNode}"
   }
   options {
-    timeout(time: 240, unit: 'MINUTES')
+    timeout(time: 60, unit: 'MINUTES')
   }
 
   environment {