VOL-764: OpenOLT - Temp hack for PON OLT openflow port numbering

Change-Id: I06822d7a0e07d50888762be4dd762f5f49c6a34a
diff --git a/voltha/adapters/openolt/openolt_device.py b/voltha/adapters/openolt/openolt_device.py
index c8d24f6..0c37427 100644
--- a/voltha/adapters/openolt/openolt_device.py
+++ b/voltha/adapters/openolt/openolt_device.py
@@ -454,7 +454,7 @@
         elif intf_type is Port.PON_OLT:
             # Interface Ids (reported by device) are zero-based indexed
             # OpenFlow port numbering is one-based.
-            return intf_id + 1
+            return intf_id + 65 # FIXME
         else:
 	    raise Exception('Invalid port type')