Add missing license info

Signed-off-by: Rafal Stefanowski <rafal.stefanowski@intel.com>

test/functional/tests/lazy_writes/recovery/recovery_tests_methods.py

@@ -1,3 +1,8 @@
+#
+# Copyright(c) 2020-2022 Intel Corporation
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
 from datetime import timedelta
 
 from core.test_run import TestRun