Moving the DT pipeline to 180 minutes

Change-Id: I2801386a3a2561d54ae29d6bb9e7b70278802f05
diff --git a/jjb/pipeline/voltha-dt-physical-functional-tests.groovy b/jjb/pipeline/voltha-dt-physical-functional-tests.groovy
index ad10291..fef91c7 100644
--- a/jjb/pipeline/voltha-dt-physical-functional-tests.groovy
+++ b/jjb/pipeline/voltha-dt-physical-functional-tests.groovy
@@ -23,7 +23,7 @@
     label "${params.buildNode}"
   }
   options {
-    timeout(time: 90, unit: 'MINUTES')
+    timeout(time: 180, unit: 'MINUTES')
   }
 
   environment {