increase timeout for the test job

Change-Id: I370e8cd4c62d30b2f5e4bf3ab2a8719bdde4ffc1
diff --git a/jjb/pipeline/voltha-physical-functional-tests.groovy b/jjb/pipeline/voltha-physical-functional-tests.groovy
index 22eca23..3cf088b 100644
--- a/jjb/pipeline/voltha-physical-functional-tests.groovy
+++ b/jjb/pipeline/voltha-physical-functional-tests.groovy
@@ -23,7 +23,7 @@
     label "${params.buildNode}"
   }
   options {
-    timeout(time: 120, unit: 'MINUTES')
+    timeout(time: 180, unit: 'MINUTES')
   }
 
   environment {