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/intel/truxton/romstage.c b/src/mainboard/intel/truxton/romstage.c
index 0677cf6..f750778 100644
--- a/src/mainboard/intel/truxton/romstage.c
+++ b/src/mainboard/intel/truxton/romstage.c
@@ -30,7 +30,7 @@
 #include "southbridge/intel/i3100/early_smbus.c"
 #include "southbridge/intel/i3100/early_lpc.c"
 #include "northbridge/intel/i3100/raminit_ep80579.h"
-#include "superio/intel/i3100/i3100.h"
+#include <superio/intel/i3100/i3100.h>
 #include "cpu/x86/mtrr/earlymtrr.c"
 #include "superio/intel/i3100/early_serial.c"
 #include "lib/debug.c" // XXX