Fix a syntax error causing Jenkins build messages

Change-Id: I420d7ed1907b13b8480445e4434a639c212c5267
diff --git a/voltha/adapters/asfvolt16_olt/asfvolt16_device_handler.py b/voltha/adapters/asfvolt16_olt/asfvolt16_device_handler.py
index 2a26193..47946e0 100644
--- a/voltha/adapters/asfvolt16_olt/asfvolt16_device_handler.py
+++ b/voltha/adapters/asfvolt16_olt/asfvolt16_device_handler.py
@@ -377,4 +377,4 @@
         )
 
         # TODO: Need to retrieve the correct destination onu_id
-        self.bal.packet_out(onu_id=1, egress_port, str(out_pkt))
+        self.bal.packet_out(1, egress_port, str(out_pkt))