staging: vt6655: kernel style cleanup of mac.c

This patch removes from mac.c the file name and an ftrace-like pr_debug
per checkpatch's two warnings.

Signed-off-by: Lucas Henneman <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/vt6655/mac.c

···
  * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
  * All rights reserved.
  *
- * File: mac.c
- *
  * Purpose:  MAC routines
  *
  * Author: Tevin Chen
···
 	if (byLocalID <= 1)
 		return;
 
-	pr_debug("%s\n", __func__);
 	offset = MISCFIFO_KEYETRY0;
 	offset += (uEntryIdx * MISCFIFO_KEYENTRYSIZE);