tty/serial: Relax the device_type restriction from of_serial

There is no need to test for a device_type property in ns8250
compatible serial ports.  device_type is an OpenFirmware property that
is not required when using the flattened tree representation.
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/tty/serial/of_serial.c

@@ -160,17 +160,17 @@ static int of_platform_serial_remove(struct platform_device *ofdev)
  * A few common types, add more as needed.
  */
 static struct of_device_id __devinitdata of_platform_serial_table[] = {
-	{ .type = "serial", .compatible = "ns8250",   .data = (void *)PORT_8250, },
-	{ .type = "serial", .compatible = "ns16450",  .data = (void *)PORT_16450, },
-	{ .type = "serial", .compatible = "ns16550a", .data = (void *)PORT_16550A, },
-	{ .type = "serial", .compatible = "ns16550",  .data = (void *)PORT_16550, },
-	{ .type = "serial", .compatible = "ns16750",  .data = (void *)PORT_16750, },
-	{ .type = "serial", .compatible = "ns16850",  .data = (void *)PORT_16850, },
+	{ .compatible = "ns8250",   .data = (void *)PORT_8250, },
+	{ .compatible = "ns16450",  .data = (void *)PORT_16450, },
+	{ .compatible = "ns16550a", .data = (void *)PORT_16550A, },
+	{ .compatible = "ns16550",  .data = (void *)PORT_16550, },
+	{ .compatible = "ns16750",  .data = (void *)PORT_16750, },
+	{ .compatible = "ns16850",  .data = (void *)PORT_16850, },
 #ifdef CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL
-	{ .type = "serial", .compatible = "ibm,qpace-nwp-serial",
-					.data = (void *)PORT_NWPSERIAL, },
+	{ .compatible = "ibm,qpace-nwp-serial",
+		.data = (void *)PORT_NWPSERIAL, },
 #endif
-	{ .type = "serial",			      .data = (void *)PORT_UNKNOWN, },
+	{ .type = "serial",         .data = (void *)PORT_UNKNOWN, },
 	{ /* end of list */ },
 };