serial: 8250_dw: don't set UPF_BOOT_AUTOCONF flag

serial8250_register_8250_port adds it to all ports it
registers. No need to set it separately.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/8250/8250_dw.c

@@ -363,7 +363,7 @@ static int dw8250_probe(struct platform_device *pdev)
 	p->handle_irq	= dw8250_handle_irq;
 	p->pm		= dw8250_do_pm;
 	p->type		= PORT_8250;
-	p->flags	= UPF_SHARE_IRQ | UPF_BOOT_AUTOCONF | UPF_FIXED_PORT;
+	p->flags	= UPF_SHARE_IRQ | UPF_FIXED_PORT;
 	p->dev		= &pdev->dev;
 	p->iotype	= UPIO_MEM;
 	p->serial_in	= dw8250_serial_in;