Fix Zyxel ONU serial number

Change-Id: Id976b68ed68aebb35f76572c32aa004a24216325
diff --git a/deployment-configs/berlin-community-pod-2-xgspon-zyxel-DT.yaml b/deployment-configs/berlin-community-pod-2-xgspon-zyxel-DT.yaml
index 218ea0c..1ac13ee 100644
--- a/deployment-configs/berlin-community-pod-2-xgspon-zyxel-DT.yaml
+++ b/deployment-configs/berlin-community-pod-2-xgspon-zyxel-DT.yaml
@@ -69,7 +69,7 @@
         dp_iface_name: eth1.7
         container_type: LXC
         container_name: ZYXE8CAC752C
-        onu: ZYXE8cac752c
+        onu: ZYWN8cac752c
         olt: S210Z14009247
         c_tag: 7
         s_tag: 41