[Palamida scan] SWDEV-553054 Adding missing copyrights information (#900)

* Add missing copyright headers in rocprofiler-systems
* Update python-tests
* Update causal test

---------

Co-authored-by: David Galiffi <David.Galiffi@amd.com>

projects/rocprofiler-systems/examples/causal/causal.cpp

@@ -1,3 +1,6 @@
+// Copyright (c) Advanced Micro Devices, Inc.
+// SPDX-License-Identifier:  MIT
+
 #include "causal.hpp"
 #include "impl.hpp"