can: esd_usb: use KBUILD_MODNAME instead of hard coded names

The driver uses the string "ems_usb" to populate
usb_driver::name. KBUILD_MODNAME also evaluates to "esd_ubs". Use
KBUILD_MODNAME and get rid on the hardcoded string names.

CC: Frank Jungclaus <frank.jungclaus@esd.eu>
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20220726082707.58758-6-mailhol.vincent@wanadoo.frSigned-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

drivers/net/can/usb/esd_usb.c

@@ -1138,7 +1138,7 @@ static void esd_usb_disconnect(struct usb_interface *intf)
 
 /* usb specific object needed to register this driver with the usb subsystem */
 static struct usb_driver esd_usb_driver = {
-	.name = "esd_usb",
+	.name = KBUILD_MODNAME,
 	.probe = esd_usb_probe,
 	.disconnect = esd_usb_disconnect,
 	.id_table = esd_usb_table,