jetway/nf81-t56n-lf: Fix PS/2 ACPI for KBC & Mouse.

Provide ACPI table node so that the PS/2 keyboard/mouse port works
in GNU/Linux.

Change-Id: If73b8d37a81bb9066cbcc650b518d25e243b84e7
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/5327
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
diff --git a/src/mainboard/jetway/nf81-t56n-lf/dsdt.asl b/src/mainboard/jetway/nf81-t56n-lf/dsdt.asl
index f7c7bb2..85813d0 100644
--- a/src/mainboard/jetway/nf81-t56n-lf/dsdt.asl
+++ b/src/mainboard/jetway/nf81-t56n-lf/dsdt.asl
@@ -59,5 +59,6 @@
 	#include "acpi/gpe.asl"
 	#include <southbridge/amd/cimx/sb800/acpi/smbus.asl>
 	#include "acpi/thermal.asl"
+	#include "acpi/superio.asl"
 }
 /* End of ASL file */