fix file specification in comments

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

Signed-off-by: Uwe Kleine-König <ukleinek@informatik.uni-freiburg.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
diff --git a/include/asm-sh/snapgear.h b/include/asm-sh/snapgear.h
index 6b5e4dd..2d712e7 100644
--- a/include/asm-sh/snapgear.h
+++ b/include/asm-sh/snapgear.h
@@ -1,5 +1,5 @@
 /*
- * include/asm-sh/snapgear/io.h
+ * include/asm-sh/snapgear.h
  *
  * Modified version of io_se.h for the snapgear-specific functions.
  *