This is a first attempt at getting INGRESS packets flowing northwards in the system.
Tested with ponsim and EAPOL packets generated by the RG tester; confirmed that the
packets flowed from rg->onu->olt->adapter->rw-core->ofagent.

Change-Id: I534c2a376751de50f8e5af9676cd9d467e7b3835
diff --git a/rw_core/core/logical_device_manager.go b/rw_core/core/logical_device_manager.go
index 5f9cea2..f49e52a 100644
--- a/rw_core/core/logical_device_manager.go
+++ b/rw_core/core/logical_device_manager.go
@@ -32,6 +32,7 @@
 type LogicalDeviceManager struct {
 	logicalDeviceAgents        map[string]*LogicalDeviceAgent
 	deviceMgr                  *DeviceManager
+	grpcNbiHdlr                *APIHandler
 	adapterProxy               *AdapterProxy
 	kafkaICProxy               *kafka.InterContainerProxy
 	clusterDataProxy           *model.Proxy
@@ -50,6 +51,10 @@
 	return &logicalDeviceMgr
 }
 
+func (ldMgr *LogicalDeviceManager) setGrpcNbiHandler(grpcNbiHandler *APIHandler) {
+	ldMgr.grpcNbiHdlr = grpcNbiHandler
+}
+
 func (ldMgr *LogicalDeviceManager) start(ctx context.Context) {
 	log.Info("starting-logical-device-manager")
 	log.Info("logical-device-manager-started")