scsi: scsi_debug: Add missing newline in scsi_debug_device_reset()

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: a743b120227a ("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>