SWDEV-293742 - Update copyright end year

Change-Id: I2cb7bbd9a6d9da28116ba9dd9cec4e60525444e2

perftests/memory/hipPerfMemset.cpp

@@ -1,5 +1,5 @@
 /*
- Copyright (c) 2015-2016 Advanced Micro Devices, Inc. All rights reserved.
+ Copyright (c) 2015 - 2021 Advanced Micro Devices, Inc. All rights reserved.
  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
  in the Software without restriction, including without limitation the rights