tty: Use tty_debug() for tty_ldisc_debug()

Replace tty_ldisc_debug() macro definition; substitute with equivalent
tty_debug() invocation.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/tty_ldisc.c

@@ -22,9 +22,7 @@
 #undef LDISC_DEBUG_HANGUP
 
 #ifdef LDISC_DEBUG_HANGUP
-#define tty_ldisc_debug(tty, f, args...) ({				  \
-	printk(KERN_DEBUG "%s: %s: " f, __func__, tty_name(tty), ##args); \
-})
+#define tty_ldisc_debug(tty, f, args...)	tty_debug(tty, f, ##args)
 #else
 #define tty_ldisc_debug(tty, f, args...)
 #endif