missing include in include/asm-ia64/sn/router.h

The below patch fixes a missing include in include/asm-ia64/sn/router.h.

Regards,
Greg Edwards

=== include/asm-ia64/sn/router.h 1.7 vs edited ==--- 1.7/include/asm-ia64/sn/router.h Mon Jan 19 00:36:03 2004
+++ edited/include/asm-ia64/sn/router.h Tue Mar 2 10:07:45 2004
@@ -20,6 +20,7 @@
#include <asm/sn/vector.h>
#include <asm/sn/slotnum.h>
#include <asm/sn/arch.h>
+#include <asm/sn/sgi.h>

typedef uint64_t router_reg_t;