Another one fix for MSVS2017

AlexeyAB

2018-08-14 7f9145729c2a2b64a7aeb3806f7c3d21771fce94

 src/dropout_layer.h

@@ -1,8 +1,8 @@
#ifndef DROPOUT_LAYER_H
#define DROPOUT_LAYER_H

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

typedef layer dropout_layer;