[PATCH] USB Serial: rename usb_serial_device_type to usb_serial_driver

I'm tired of trying to explain why a "device_type" is really a driver.
This better describes exactly what this structure is.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 4989e57..6ec9266 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -105,7 +105,7 @@
 /* The card has three separate interfaces, wich the serial driver
  * recognizes separately, thus num_port=1.
  */
-static struct usb_serial_device_type option_3port_device = {
+static struct usb_serial_driver option_3port_device = {
 	.owner             = THIS_MODULE,
 	.name              = "Option 3G data card",
 	.short_name        = "option",