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>
diff --git a/arch/alpha/kernel/machvec_impl.h b/arch/alpha/kernel/machvec_impl.h
index 08b8302..0caa45a 100644
--- a/arch/alpha/kernel/machvec_impl.h
+++ b/arch/alpha/kernel/machvec_impl.h
@@ -1,5 +1,5 @@
 /*
- *	linux/arch/alpha/kernel/machvec.h
+ *	linux/arch/alpha/kernel/machvec_impl.h
  *
  *	Copyright (C) 1997, 1998  Richard Henderson
  *