Allow reuse of this file beyond GPL compatible software,

update the license of crt0-efi-aarch64.S to dual 2-clause BSD/GPLv2+.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Nigel Croxon <nigel.croxon@hp.com>

gnu-efi-3.0/gnuefi/crt0-efi-aarch64.S

@@ -1,12 +1,19 @@
 /*
- * crt0-efi-aarch64.S - PE/COFF header for Aarch64 EFI applications
+ * crt0-efi-aarch64.S - PE/COFF header for AArch64 EFI applications
  *
  * Copright (C) 2014 Linaro Ltd. <ard.biesheuvel@linaro.org>
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice and this list of conditions, without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License as published by the Free Software Foundation;
+ * either version 2 of the License, or (at your option) any later version.
  */
 
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