[VOL-5214]:make 'Multi-Tcont Tests' optional in TT tests

Change-Id: Iefa275262817aac621690561e05958f1f6d75aaa
diff --git a/jjb/pipeline/voltha/voltha-tt-physical-functional-tests.groovy b/jjb/pipeline/voltha/voltha-tt-physical-functional-tests.groovy
index c92d747..dec9265 100644
--- a/jjb/pipeline/voltha/voltha-tt-physical-functional-tests.groovy
+++ b/jjb/pipeline/voltha/voltha-tt-physical-functional-tests.groovy
@@ -179,6 +179,11 @@
     }
 
     stage('Multi-Tcont Tests') {
+      when {
+        expression {
+          return params.runMultiTcontTests
+        }
+      }
       environment {
         ROBOT_CONFIG_FILE="$WORKSPACE/${configBaseDir}/${configDeploymentDir}/${configFileName}-TT.yaml"
         ROBOT_FILE="Voltha_TT_MultiTcontTests.robot"