[SERIAL] uart_port iotype member should use UPIO_*

Convert usage of SERIAL_IO_* to UPIO_*.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/serial/sunsab.c b/drivers/serial/sunsab.c
index 8bcaebc..8566422 100644
--- a/drivers/serial/sunsab.c
+++ b/drivers/serial/sunsab.c
@@ -1036,7 +1036,7 @@
 		up->port.irq = edev->irqs[0];
 		up->port.fifosize = SAB82532_XMIT_FIFO_SIZE;
 		up->port.mapbase = (unsigned long)up->regs;
-		up->port.iotype = SERIAL_IO_MEM;
+		up->port.iotype = UPIO_MEM;
 
 		writeb(SAB82532_IPC_IC_ACT_LOW, &up->regs->w.ipc);