Adds support for BBF WT-385 xPON model:

VOL-151: Framework for OLT PON Configuration Parameters
VOL-152: Framework for ONU Configuration Parameters
VOL-220: Support configuration(Create/Read/Delete) of Channel-Group,
         Channel-Partition, Channel-Pair & Channel-Termination Objects
         for XGS-PON

Change-Id: I992a4e03e6e7b021d7aa9a49a5f8466876c8f07c
diff --git a/voltha/adapters/tibit_onu/tibit_onu.py b/voltha/adapters/tibit_onu/tibit_onu.py
index 7ee421f..bc18dc7 100644
--- a/voltha/adapters/tibit_onu/tibit_onu.py
+++ b/voltha/adapters/tibit_onu/tibit_onu.py
@@ -537,6 +537,18 @@
                   proxy_address=proxy_address, msg=msg.show(dump=True))
         self.incoming_messages.put(msg)
 
+    def create_interface(self, device, data):
+        raise NotImplementedError()
+
+    def update_interface(self, device, data):
+        raise NotImplementedError()
+
+    def remove_interface(self, device, data):
+        raise NotImplementedError()
+
+    def receive_onu_detect_state(self, device_id, state):
+        raise NotImplementedError()
+
     @inlineCallbacks
     def _message_exchange(self, device):