Specify the correct kafka service

Change-Id: Id5fce18cca65a72d1ec4330855b595631c5f32af
diff --git a/configs/seba-ponsim.yaml b/configs/seba-ponsim.yaml
index 3d5e4c9..911c9bb 100644
--- a/configs/seba-ponsim.yaml
+++ b/configs/seba-ponsim.yaml
@@ -20,3 +20,7 @@
 etcd-cluster:
   clusterSize: 1
 
+# in workflow/att-workflow service chart
+att-workflow-driver:
+  # this is mandatory, it's needed to correctly configure the kafka endpoint
+  kafkaService: cord-kafka