resolves compilation error: no template named 'shared_ptr' in namespace 'std'

--- orig/benchmark/benchmark_device_radix_sort.cpp	2021-08-26 11:37:12.587196186 +0800
+++ hipCUB-rocm-4.3.0/benchmark/benchmark_device_radix_sort.cpp	2021-08-26 11:37:27.459196285 +0800
@@ -21,6 +21,7 @@
 // SOFTWARE.
 
 #include "common_benchmark_header.hpp"
+#include <memory>
 
 // HIP API
 #include "hipcub/device/device_radix_sort.hpp"