MLECO-3583: Update copyright notice according to new guidelines

Change-Id: I0f057b33993e5196a60e52f4fb0c60e09693dcfe
diff --git a/source/hal/source/platform/mps3/include/sse-310/mem_regions.h b/source/hal/source/platform/mps3/include/sse-310/mem_regions.h
index f6430e0..2e58fb4 100644
--- a/source/hal/source/platform/mps3/include/sse-310/mem_regions.h
+++ b/source/hal/source/platform/mps3/include/sse-310/mem_regions.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2022 Arm Limited. All rights reserved.
+ * SPDX-FileCopyrightText: Copyright 2022 Arm Limited and/or its affiliates <open-source-office@arm.com>
  * SPDX-License-Identifier: Apache-2.0
  *
  * Licensed under the Apache License, Version 2.0 (the "License");