s390/tape: Fix device driver name

Recent cleanups and code consolidations in the s390 tape device driver
renamed files and function namespaces from tape_34xx to tape_3490 to
better reflect the single support of the IBM 3490E device in the
codebase.

These changes also renamed the driver name to tape_3490, which
consequently broke userspace as the sysfs driver path is now
/sys/bus/ccw/drivers/tape_3490/ instead of
/sys/bus/ccw/drivers/tape_34xx/.

Change the device driver name back to tape_34xx to fix userspace.

Fixes: 9872dae ("s390/tape: Rename tape_34xx.c to tape_3490.c")
Reported-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Reviewed-by: Jens Remus <jremus@linux.ibm.com>
Tested-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

Author: hoeppnerj

drivers/s390/char/tape_3490.c

@@ -784,7 +784,7 @@ tape_3490_online(struct ccw_device *cdev)
 
 static struct ccw_driver tape_3490_driver = {
 	.driver = {
-		.name = "tape_3490",
+		.name = "tape_34xx",
 		.owner = THIS_MODULE,
 	},
 	.ids = tape_3490_ids,