mainboard: Trivial - drop trailing blank lines at EOF

Change-Id: I05d6d22664155ac8478e665733f816776e277c22
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/6200
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>

src/mainboard/getac/p470/irq_tables.c

@@ -60,4 +60,3 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 {
 	return copy_pirq_routing_table(addr, &intel_irq_routing_table);
 }
-