CIFS: Cleanup cifs_mknod

Rename camel case variable and fix comment style.

Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <smfrench@gmail.com>
CIFS: Remove extra indentation in cifs_sfu_type

Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <smfrench@gmail.com>