serial: Use UPF_* constants with struct uart_port flags

Fix ASYNC_* constant usage that should be the corresponding UPF_*
constant.

CC: Grant Likely <grant.likely@linaro.org>
CC: Rob Herring <robh+dt@kernel.org>
CC: devicetree@vger.kernel.org
Signed-off-by: NPeter Hurley <peter@hurleysoftware.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/lantiq.c

@@ -703,7 +703,7 @@ lqasc_probe(struct platform_device *pdev)
 	port = &ltq_port->port;
 
 	port->iotype	= SERIAL_IO_MEM;
-	port->flags	= ASYNC_BOOT_AUTOCONF | UPF_IOREMAP;
+	port->flags	= UPF_BOOT_AUTOCONF | UPF_IOREMAP;
 	port->ops	= &lqasc_pops;
 	port->fifosize	= 16;
 	port->type	= PORT_LTQ_ASC,

drivers/tty/serial/mcf.c

@@ -537,7 +537,7 @@ int __init early_mcf_setup(struct mcf_platform_uart *platp)
 		port->iotype = SERIAL_IO_MEM;
 		port->irq = platp[i].irq;
 		port->uartclk = MCF_BUSCLK;
-		port->flags = ASYNC_BOOT_AUTOCONF;
+		port->flags = UPF_BOOT_AUTOCONF;
 		port->ops = &mcf_uart_ops;
 	}
 
@@ -662,7 +662,7 @@ static int mcf_probe(struct platform_device *pdev)
 		port->irq = platp[i].irq;
 		port->uartclk = MCF_BUSCLK;
 		port->ops = &mcf_uart_ops;
-		port->flags = ASYNC_BOOT_AUTOCONF;
+		port->flags = UPF_BOOT_AUTOCONF;
 
 		uart_add_one_port(&mcf_driver, port);
 	}