SWDEV-293742 - Update copyright end year VDI repo

Change-Id: I69d2fea4a7a43adf96ccea794270e4af991c5261

rocclr/device/gpu/gputimestamp.cpp

@@ -1,4 +1,4 @@
-/* Copyright (c) 2008-present Advanced Micro Devices, Inc.
+/* Copyright (c) 2008 - 2021 Advanced Micro Devices, Inc.
 
  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal