[VOL-4711] Added FTTB Test Support on Berlin DT Pod with ADTRAN DPU

Change-Id: I76f88f87cfdb49cb23d1d0a339f0f2bcc21b5a12
diff --git a/vars/volthaDeploy.groovy b/vars/volthaDeploy.groovy
index aad754b..8cb2622 100644
--- a/vars/volthaDeploy.groovy
+++ b/vars/volthaDeploy.groovy
@@ -15,6 +15,7 @@
       stackId: 1,
       workflow: "att",
       withMacLearning: false,
+      withFttb: 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"