[legal] Add missing FILE_LICENCE declarations

Signed-off-by: Marin Hannache <git@mareo.fr>
Signed-off-by: Michael Brown <mcb30@ipxe.org>

src/include/ipxe/efi/ProcessorBind.h

@@ -1,6 +1,8 @@
 #ifndef _IPXE_EFI_PROCESSOR_BIND_H
 #define _IPXE_EFI_PROCESSOR_BIND_H
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 /*
  * EFI header files rely on having the CPU architecture directory
  * present in the search path in order to pick up ProcessorBind.h.  We

src/include/ipxe/efi/efi.h

@@ -21,6 +21,8 @@
  * trailing whitespace.
  */
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 /* EFI headers rudely redefine NULL */
 #undef NULL