USB: serial: qcaux.c: use module_usb_serial_driver

This converts the qcaux.c driver to use the module_usb_serial_driver() call
instead of having to have a module_init/module_exit function, saving a lot
of duplicated code.

CC: Alan Stern <stern@rowland.harvard.edu>
CC: Dan Williams <dcbw@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/serial/qcaux.c

@@ -97,16 +97,5 @@ static struct usb_serial_driver * const serial_drivers[] = {
 	&qcaux_device, NULL
 };
 
-static int __init qcaux_init(void)
-{
-	return usb_serial_register_drivers(&qcaux_driver, serial_drivers);
-}
-
-static void __exit qcaux_exit(void)
-{
-	usb_serial_deregister_drivers(&qcaux_driver, serial_drivers);
-}
-
-module_init(qcaux_init);
-module_exit(qcaux_exit);
+module_usb_serial_driver(qcaux_driver, serial_drivers);
 MODULE_LICENSE("GPL");