fix type for AvgPooling test

unit_tests/Test_AvgPoolingImpl.cpp

@@ -148,8 +148,8 @@ TEST_CASE("[gpu/operator] AvgPooling(forward)", "[AvgPooling][GPU]") {
         op->computeOutputDims();
         myAvgPool->forward();
 
-        half* computedOutput   = new half[myOutput->size()]();
-        cudaMemcpy(computedOutput, op->getOutput(0)->getImpl()->rawPtr(), sizeof(half) * myOutput->size(), cudaMemcpyDeviceToHost);
+        half_float::half* computedOutput   = new half_float::half[myOutput->size()]();
+        cudaMemcpy(computedOutput, op->getOutput(0)->getImpl()->rawPtr(), sizeof(half_float::half) * myOutput->size(), cudaMemcpyDeviceToHost);
 
         for(int i = 0; i < myOutput->size(); i++){
             const half_float::half targetOutput = *(static_cast<half_float::half*>(myOutput->getImpl()->rawPtr()) + i);