change deployment config on berlin pod to use external onos controller to control the fabric switch

Change-Id: I26d78ca0ba9c3148bbc0ce385af856486f7f313d
diff --git a/deployment-configs/berlin-community-pod-1-gpon-fttb-DT.yaml b/deployment-configs/berlin-community-pod-1-gpon-fttb-DT.yaml
index b0af959..417f53d 100644
--- a/deployment-configs/berlin-community-pod-1-gpon-fttb-DT.yaml
+++ b/deployment-configs/berlin-community-pod-1-gpon-fttb-DT.yaml
@@ -37,14 +37,15 @@
       user: 'community'
       pass: 'admin'
 
-  fabric_switches:
-    -
-      mac: '8c:ea:1b:a7:29:72'
-      ip: 10.34.90.55
-      user: root
-      pass: onl
-      bngPort: 157
-      device_id: 'of:0000000000000001'
+  fabric_switches: []
+  # The switch is shared across 2 PODs, thus is externally controlled
+  #  -
+  #    mac: '8c:ea:1b:a7:29:72'
+  #    ip: 10.34.90.55
+  #    user: root
+  #    pass: onl
+  #    bngPort: 157
+  #    device_id: 'of:0000000000000001'
 
   olts:
   # Gpon OLT