Fix trademarks throughout the codebase

Resolves: COMPMID-4299

Change-Id: Ie6a52c1371b9a2a7b5bb4f019ecd5e70a2008567
Signed-off-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/5338
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
diff --git a/tests/SConscript b/tests/SConscript
index d4cc514..df7a6c5 100644
--- a/tests/SConscript
+++ b/tests/SConscript
@@ -1,3 +1,5 @@
+# -*- coding: utf-8 -*-
+
 # Copyright (c) 2017-2021 Arm Limited.
 #
 # SPDX-License-Identifier: MIT