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>

drivers/usb/core/file.c

@@ -1,5 +1,5 @@
 /*
- * drivers/usb/file.c
+ * drivers/usb/core/file.c
  *
  * (C) Copyright Linus Torvalds 1999
  * (C) Copyright Johannes Erdfelt 1999-2001

drivers/usb/core/usb.c

@@ -1,5 +1,5 @@
 /*
- * drivers/usb/usb.c
+ * drivers/usb/core/usb.c
  *
  * (C) Copyright Linus Torvalds 1999
  * (C) Copyright Johannes Erdfelt 1999-2001