staging: dgnc: fix unnamed parameter

This patch fixes a checkpatch warning.
Signed-off-by: Fernando Apesteguia <fernando.apesteguia@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/dgnc/dgnc_tty.h

@@ -21,9 +21,9 @@
 int	dgnc_tty_register(struct dgnc_board *brd);
 void dgnc_tty_unregister(struct dgnc_board *brd);
 
-int     dgnc_tty_init(struct dgnc_board *);
+int     dgnc_tty_init(struct dgnc_board *brd);
 
-void	dgnc_cleanup_tty(struct dgnc_board *);
+void	dgnc_cleanup_tty(struct dgnc_board *brd);
 
 void	dgnc_input(struct channel_t *ch);
 void	dgnc_carrier(struct channel_t *ch);