SWDEV-293742 - Update copyright end year

Change-Id: I2cb7bbd9a6d9da28116ba9dd9cec4e60525444e2

tests/src/compiler/hipClassKernel.cpp

@@ -1,5 +1,5 @@
 /*
-Copyright (c) 2015-Present 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

tests/src/compiler/hipClassKernel.h

@@ -1,5 +1,5 @@
 /*
-Copyright (c) 2015-Present 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