scsi: scsi_debug: Add missing newline in scsi_debug_device_reset()

A "\n" at the end of the sdev_printk() string appears to have been
inadvertently removed.  Add it back for correct log message formatting.

Fixes: a743b12 ("scsi: scsi_debug: Stop printing extra function name in debug logs")
Assisted-by: Claude:claude-opus-4-6
Signed-off-by: Ewan D. Milne <emilne@redhat.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Link: https://patch.msgid.link/20260519205356.1040855-1-emilne@redhat.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

Author: Ewan D. Milne

drivers/scsi/scsi_debug.c

@@ -6953,7 +6953,7 @@ static int scsi_debug_device_reset(struct scsi_cmnd *SCpnt)
 	++num_dev_resets;
 
 	if (SDEBUG_OPT_ALL_NOISE & sdebug_opts)
-		sdev_printk(KERN_INFO, sdp, "doing device reset");
+		sdev_printk(KERN_INFO, sdp, "doing device reset\n");
 
 	scsi_debug_stop_all_queued(sdp);
 	if (devip) {