Staging: wl_cs.c: fixed invalid UTF-8 style issues in wl_cs.c

This is a patch to the wl_cs.c file that corrects the invalid
UTF-8 encoding style issues found by the checkpatch.pl tool.
Signed-off-by: NPrashant P. Shah <pshah.mumbai@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/staging/wlags49_h2/wl_cs.c

@@ -23,7 +23,7 @@
  * software indicates your acceptance of these terms and conditions.  If you do
  * not agree with these terms and conditions, do not use the software.
  *
- * Copyright © 2003 Agere Systems Inc.
+ * Copyright (c) 2003 Agere Systems Inc.
  * All rights reserved.
  *
  * Redistribution and use in source or binary forms, with or without
@@ -44,7 +44,7 @@
  *
  * Disclaimer
  *
- * THIS SOFTWARE IS PROVIDED “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
  * INCLUDING, BUT NOT LIMITED TO, INFRINGEMENT AND THE IMPLIED WARRANTIES OF
  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  ANY
  * USE, MODIFICATION OR DISTRIBUTION OF THIS SOFTWARE IS SOLELY AT THE USERS OWN