can: gs_ubs: use KBUILD_MODNAME instead of hard coded names

The driver uses the string "gs_usb" to populate usb_driver::name,
can_bittiming_const::name and
can_data_bittiming_const::name. KBUILD_MODNAME evaluates to
"gs_ubs". Use KBUILD_MODNAME and get rid on the hardcoded string
names.

Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20220726082707.58758-7-mailhol.vincent@wanadoo.fr
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

drivers/net/can/usb/gs_usb.c

@@ -993,7 +993,7 @@ static struct gs_can *gs_make_candev(unsigned int channel,
 	netdev->flags |= IFF_ECHO; /* we support full roundtrip echo */
 
 	/* dev setup */
-	strcpy(dev->bt_const.name, "gs_usb");
+	strcpy(dev->bt_const.name, KBUILD_MODNAME);
 	dev->bt_const.tseg1_min = le32_to_cpu(bt_const->tseg1_min);
 	dev->bt_const.tseg1_max = le32_to_cpu(bt_const->tseg1_max);
 	dev->bt_const.tseg2_min = le32_to_cpu(bt_const->tseg2_min);
@@ -1100,7 +1100,7 @@ static struct gs_can *gs_make_candev(unsigned int channel,
 			return ERR_PTR(rc);
 		}
 
-		strcpy(dev->data_bt_const.name, "gs_usb");
+		strcpy(dev->data_bt_const.name, KBUILD_MODNAME);
 		dev->data_bt_const.tseg1_min = le32_to_cpu(bt_const_extended->dtseg1_min);
 		dev->data_bt_const.tseg1_max = le32_to_cpu(bt_const_extended->dtseg1_max);
 		dev->data_bt_const.tseg2_min = le32_to_cpu(bt_const_extended->dtseg2_min);
@@ -1270,7 +1270,7 @@ static const struct usb_device_id gs_usb_table[] = {
 MODULE_DEVICE_TABLE(usb, gs_usb_table);
 
 static struct usb_driver gs_usb_driver = {
-	.name = "gs_usb",
+	.name = KBUILD_MODNAME,
 	.probe = gs_usb_probe,
 	.disconnect = gs_usb_disconnect,
 	.id_table = gs_usb_table,