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/arm/mach-omap1/serial.c b/arch/arm/mach-omap1/serial.c
index 976edfb8..c4b7902 100644
--- a/arch/arm/mach-omap1/serial.c
+++ b/arch/arm/mach-omap1/serial.c
@@ -1,5 +1,5 @@
 /*
- * linux/arch/arm/mach-omap1/id.c
+ * linux/arch/arm/mach-omap1/serial.c
  *
  * OMAP1 CPU identification code
  *