proper prototype for vty_init()

Add a proper prototype for vty_init() in include/linux/vt_kern.h

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/vt_kern.h b/include/linux/vt_kern.h
index feb5e99..9448ffb 100644
--- a/include/linux/vt_kern.h
+++ b/include/linux/vt_kern.h
@@ -77,6 +77,7 @@
 void reset_vc(struct vc_data *vc);
 extern int unbind_con_driver(const struct consw *csw, int first, int last,
 			     int deflt);
+int vty_init(void);
 
 /*
  * vc_screen.c shares this temporary buffer with the console write code so that