[PATCH bpf] selftests/bpf: Add a copyright notice to lpm_trie_map_get_next_key

[Byeonguk Jeong <jungbu2855@xxxxxxxxx>]

Add a copyright notice that was missed at the commit
d7f214aeacb9 ("selftests/bpf: Add test for trie_get_next_key()")

Signed-off-by: Byeonguk Jeong <jungbu2855@xxxxxxxxx>
---
 .../testing/selftests/bpf/map_tests/lpm_trie_map_get_next_key.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/map_tests/lpm_trie_map_get_next_key.c b/tools/testing/selftests/bpf/map_tests/lpm_trie_map_get_next_key.c
index 0ba015686492..3821d229cad3 100644
--- a/tools/testing/selftests/bpf/map_tests/lpm_trie_map_get_next_key.c
+++ b/tools/testing/selftests/bpf/map_tests/lpm_trie_map_get_next_key.c
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0
-
+/* Copyright (c) 2024 Ahnlab, Inc.  */
 #define _GNU_SOURCE
 #include <linux/bpf.h>
 #include <stdio.h>
-- 
2.43.0