Resolve "Add an option to send gNMI Subscribe requests via SBI"

Description

#227 (closed)

controller/nucleus/deviceWatcher.go

@@ -86,8 +86,8 @@ func (d *DeviceWatcher) callSubscribe(stopContext context.Context, pndID string,
 	gNMIOptionsCtx := context.Background()
 	gNMIOptionsCtx = context.WithValue(gNMIOptionsCtx, types.CtxKeyOpts, opts)
 
-	// device ID and name are passed to the internal subscribe to check in which device
-	// a problem occurs in case of an error
+	// SubscriptionInformation conatins pnd ID, device ID and name to be used in the internal subscribe to check
+	// from which device a response or a problem occurs in case of an error
 	if err := device.Transport().SubscribeInternal(gNMIOptionsCtx, handleSubscribeResponse, &transport.SubscriptionInformation{
 		PndID:       pndID,
 		DeviceID:    device.ID().String(),