VOL-2294 Flow-decomposer should not decompose multicast flows;
it should leave it as it is.

Change-Id: I6020b66257ed6f19145298dde34c2bae7b338650
diff --git a/rw_core/coreif/logical_device_agent_if.go b/rw_core/coreif/logical_device_agent_if.go
index 167d309..c9dbe6c 100644
--- a/rw_core/coreif/logical_device_agent_if.go
+++ b/rw_core/coreif/logical_device_agent_if.go
@@ -31,4 +31,5 @@
 	GetDeviceGraph() *graph.DeviceGraph
 	GetWildcardInputPorts(excludePort ...uint32) []uint32
 	GetRoute(ingressPortNo uint32, egressPortNo uint32) []graph.RouteHop
+	GetNNIPorts() []uint32
 }