sh: Cleanup source code of MS7722SE

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>

board/ms7722se/ms7722se.c

 /*
- * Copyright (C) 2007
+ * Copyright (C) 2007,2008
  * Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
  *
  * Copyright (C) 2007
@@ -55,5 +55,5 @@ int dram_init (void)
 
 void led_set_state(unsigned short value)
 {
-	*((volatile unsigned short *) LED_BASE) = (value & 0xFF);
+	writew(value & 0xFF, LED_BASE);
 }