[ACPI] handle SCI override to nth IOAPIC

http://bugzilla.kernel.org/show_bug.cgi?id=2835

arch/i386/kernel/mpparse.c

@@ -1002,6 +1002,7 @@ void __init mp_config_acpi_legacy_irqs (void)
 
 		for (idx = 0; idx < mp_irq_entries; idx++)
 			if (mp_irqs[idx].mpc_srcbus == MP_ISA_BUS &&
+				(mp_irqs[idx].mpc_dstapic == ioapic) &&
 				(mp_irqs[idx].mpc_srcbusirq == i ||
 				mp_irqs[idx].mpc_dstirq == i))
 					break;

arch/x86_64/kernel/mpparse.c

@@ -857,6 +857,7 @@ void __init mp_config_acpi_legacy_irqs (void)
 
 		for (idx = 0; idx < mp_irq_entries; idx++)
 			if (mp_irqs[idx].mpc_srcbus == MP_ISA_BUS &&
+				(mp_irqs[idx].mpc_dstapic == ioapic) &&
 				(mp_irqs[idx].mpc_srcbusirq == i ||
 				mp_irqs[idx].mpc_dstirq == i))
 					break;