IVGCVSW-7024 Add missing license info for reuse lint

Signed-off-by: Jim Flynn <jim.flynn@arm.com>
Change-Id: I97dee6982e0a7be01c13e9e803c0997547a39ff1
diff --git a/samples/CMakeLists.txt b/samples/CMakeLists.txt
index 42e5a47..31ff508 100644
--- a/samples/CMakeLists.txt
+++ b/samples/CMakeLists.txt
@@ -1,3 +1,7 @@
+#
+# Copyright © 2018-2022 Arm Ltd and Contributors. All rights reserved.
+# SPDX-License-Identifier: MIT
+#
 if (NOT BUILD_BARE_METAL)
    if(BUILD_SAMPLE_APP AND ARMNNREF)
         add_executable(SimpleSample SimpleSample.cpp)