qemu-malta: Update for SPDX license identifiers

Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/board/qemu-malta/qemu-malta.c b/board/qemu-malta/qemu-malta.c
index 4cbd736..7eddf1c 100644
--- a/board/qemu-malta/qemu-malta.c
+++ b/board/qemu-malta/qemu-malta.c
@@ -1,9 +1,7 @@
 /*
  * Copyright (C) 2013 Gabor Juhos <juhosg@openwrt.org>
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
+ * SPDX-License-Identifier:	GPL-2.0
  */
 
 #include <common.h>