LICENSE: add GPLv2 license option.
As per the MCTP design document
(https://github.com/openbmc/docs/blob/master/designs/mctp.md), a
dual-licence (GPLv2+ and Apache-2.0) gives us flexibility with including
libcmtp code into various firmware environments.
This change adds GPLv2+ as a license option. All current contributors
have agreed to this change.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
diff --git a/libmctp-serial.h b/libmctp-serial.h
index 68f184e..8684950 100644
--- a/libmctp-serial.h
+++ b/libmctp-serial.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: Apache-2.0 */
+/* SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later */
#ifndef _LIBMCTP_SERIAL_H
#define _LIBMCTP_SERIAL_H