VOL-1494: Support for adding multiple logical uni

Also error handling in ofagent and system-test
now starts onos. Needed to update proto for ofagent

Change-Id: I0d061edc9f1bdac6ebaf7b2e9254e8ea69b3b2d5
diff --git a/protos/logical_device.proto b/protos/logical_device.proto
index b8d424f..54b9e02 100644
--- a/protos/logical_device.proto
+++ b/protos/logical_device.proto
@@ -22,6 +22,7 @@
     string device_id = 3;
     uint32 device_port_no = 4;
     bool root_port = 5;
+    openflow_13.ofp_port_stats ofp_port_stats = 6;
 }
 
 message LogicalPorts {