Openolt data model alarm fix

Change-Id: I21c3382c83f6f156c63a4d4f28b5a502232d2fdf
diff --git a/voltha/adapters/openolt/openolt_data_model.py b/voltha/adapters/openolt/openolt_data_model.py
index e69f514..00ffaa4 100644
--- a/voltha/adapters/openolt/openolt_data_model.py
+++ b/voltha/adapters/openolt/openolt_data_model.py
@@ -419,7 +419,7 @@
         return onu_device
 
     def create_alarm(self, **kwargs):
-        self.adapter_agent.create_alarm(kwargs)
+        return self.adapter_agent.create_alarm(**kwargs)
 
     def submit_alarm(self, alarm_event):
         self.adapter_agent.submit_alarm(self.device.id, alarm_event)