mainboard: Sanitize some superio include paths to be non-local

This brings mainboard up to being consistent tree-wide now for
all superio header path inclusions.

Change-Id: I00a806ce209ba363c62e3ddd49db9bf599f32149
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/8052
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
diff --git a/src/mainboard/samsung/stumpy/romstage.c b/src/mainboard/samsung/stumpy/romstage.c
index f842ad2..1462132 100644
--- a/src/mainboard/samsung/stumpy/romstage.c
+++ b/src/mainboard/samsung/stumpy/romstage.c
@@ -44,7 +44,7 @@
 #include <halt.h>
 #include "gpio.h"
 #if CONFIG_DRIVERS_UART_8250IO
-#include "superio/smsc/lpc47n207/lpc47n207.h"
+#include <superio/smsc/lpc47n207/lpc47n207.h>
 #include "superio/smsc/lpc47n207/early_serial.c"
 #endif
 #if CONFIG_CHROMEOS