Fixed x & y coords less than 0

AlexeyAB

2017-03-17 71a9929af6c3d3ffb9527bb921c5cc4a20971ff6

 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;