fix file specification in comments

Many files include the filename at the beginning, serveral used a wrong one.

Signed-off-by: Uwe Zeisberger <Uwe_Zeisberger@digi.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>

arch/sh/boards/renesas/systemh/io.c

@@ -1,5 +1,5 @@
 /*
- * linux/arch/sh/boards/systemh/io.c
+ * linux/arch/sh/boards/renesas/systemh/io.c
  *
  * Copyright (C) 2001  Ian da Silva, Jeremy Siegel
  * Based largely on io_se.c.