bcm63xx_uart: Fix serial driver compile breakage.

The driver missed a small API change while sitting in Ralf's tree, this
patch makes it compile again.

Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/serial/bcm63xx_uart.c b/drivers/serial/bcm63xx_uart.c
index beddaa6..37ad0c4 100644
--- a/drivers/serial/bcm63xx_uart.c
+++ b/drivers/serial/bcm63xx_uart.c
@@ -242,7 +242,7 @@
 	 * higher than fifo size anyway since we're much faster than
 	 * serial port */
 	max_count = 32;
-	tty = port->info->port.tty;
+	tty = port->state->port.tty;
 	do {
 		unsigned int iestat, c, cstat;
 		char flag;
@@ -318,7 +318,7 @@
 		return;
 	}
 
-	xmit = &port->info->xmit;
+	xmit = &port->state->xmit;
 	if (uart_circ_empty(xmit))
 		goto txq_empty;