staging: xgifb: unify #include order

Include Linux headers before driver's own headers.
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/staging/xgifb/vb_init.c

-#include "vgatypes.h"
-
 #include <linux/types.h>
 #include <linux/delay.h> /* udelay */
+#include "vgatypes.h"
 #include "XGIfb.h"
 
 #include "vb_def.h"

drivers/staging/xgifb/vb_util.c

+#include <linux/io.h>
+#include <linux/types.h>
+
 #include "vb_def.h"
 #include "vgatypes.h"
 #include "vb_struct.h"
 
 #include "XGIfb.h"
-#include <linux/io.h>
-#include <linux/types.h>
 
 #include "vb_util.h"