tools: bpf: fix license for a compat header file

libc_compat.h is used by libbpf so make sure it's licensed under
LGPL or BSD license. The license change should be OK, I'm the only
author of the file.

Signed-off-by: Jakub Kicinski <[e-mail]>
Reviewed-by: Quentin Monnet <[e-mail]>
Acked-by: Yonghong Song <[e-mail]>
Signed-off-by: Daniel Borkmann <[e-mail]>

tools/include/tools/libc_compat.h

···
-// SPDX-License-Identifier: GPL-2.0+
+// SPDX-License-Identifier: (LGPL-2.0+ OR BSD-2-Clause)
 /* Copyright (C) 2018 Netronome Systems, Inc. */
 
 #ifndef __TOOLS_LIBC_COMPAT_H