Fix compile errors in SGI console drivers (linux-next tree)

The below is the patch to replace blindly all possible places,
including Jack's fixes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
(Reviewed and checked rather than blindly added)
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/serial/sb1250-duart.c b/drivers/serial/sb1250-duart.c
index f8e1447..a4fb343a 100644
--- a/drivers/serial/sb1250-duart.c
+++ b/drivers/serial/sb1250-duart.c
@@ -384,7 +384,7 @@
 		uart_insert_char(uport, status, M_DUART_OVRUN_ERR, ch, flag);
 	}
 
-	tty_flip_buffer_push(uport->info->tty);
+	tty_flip_buffer_push(uport->info->port.tty);
 }
 
 static void sbd_transmit_chars(struct sbd_port *sport)