pty: Mark pty_resize static

Nothing outside of drivers/tty/pty.c references pty_resize.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index a541ec8..be6a373 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -277,7 +277,7 @@
  *	peform a terminal resize correctly
  */
 
-int pty_resize(struct tty_struct *tty,  struct winsize *ws)
+static int pty_resize(struct tty_struct *tty,  struct winsize *ws)
 {
 	struct pid *pgrp, *rpgrp;
 	unsigned long flags;