Fix openCV 3.4.1 highgui

Yu Hao

2018-05-31 6c675a09278aeb7f579ff9ee7c20e990119be8ff

 src/avgpool_layer.h

@@ -2,9 +2,9 @@
#define AVGPOOL_LAYER_H

#include "image.h"
#include "params.h"
#include "cuda.h"
#include "layer.h"
#include "network.h"

typedef layer avgpool_layer;