Added __float2half_rn() and __half2float()

AlexeyAB

2018-02-22 b2b5756d86670b787dac440020922eeb5e8a1442

 src/avgpool_layer_kernels.cu

@@ -1,3 +1,7 @@
#include "cuda_runtime.h"
#include "curand.h"
#include "cublas_v2.h"

extern "C" {
#include "avgpool_layer.h"
#include "cuda.h"