[VOL-4590] Added support for enableMacLearning in TT bbsim jobs

Change-Id: I67d687b7cc579d065ce5f2019fd4f625442934c5
diff --git a/vars/volthaDeploy.groovy b/vars/volthaDeploy.groovy
index d8d679f..7936e5a 100644
--- a/vars/volthaDeploy.groovy
+++ b/vars/volthaDeploy.groovy
@@ -14,6 +14,7 @@
       stackName: "voltha",
       stackId: 1,
       workflow: "att",
+      withMacLearning: false,
       extraHelmFlags: "",
       localCharts: false, // wether to use locally cloned charts or upstream one (for local we assume they are stored in $WORKSPACE/voltha-helm-charts)
       dockerRegistry: "", // use a different docker registry for all images, eg: "mirror.registry.opennetworking.org"