qemu-malta: Update for SPDX license identifiers

Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/drivers/pci/pci_gt64120.c b/drivers/pci/pci_gt64120.c
index a610758..4756f142 100644
--- a/drivers/pci/pci_gt64120.c
+++ b/drivers/pci/pci_gt64120.c
@@ -6,9 +6,7 @@
  *   Authors: Carsten Langgaard <carstenl@mips.com>
  *            Maciej W. Rozycki <macro@mips.com>
  *
- * 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>