[VOL-3619] Failing the pipeline if the test fail and delete the OLT in ONOS before tearing down VOLTHA

Change-Id: I844e36f328d77792bc0664e26efae6bde17b0ffe
diff --git a/jjb/pipeline/voltha-scale-test.groovy b/jjb/pipeline/voltha-scale-test.groovy
index 56a026e..a6bc9e9 100644
--- a/jjb/pipeline/voltha-scale-test.groovy
+++ b/jjb/pipeline/voltha-scale-test.groovy
@@ -426,7 +426,7 @@
             _TAG=$_TAG bash $WORKSPACE/pprof.sh &
           fi
         '''
-        timeout(time: 11, unit: 'MINUTES') {
+        timeout(time: 15, unit: 'MINUTES') {
           sh '''
             ROBOT_PARAMS="-v olt:${olts} \
               -v pon:${pons} \