scsi: core: use scmd_printk() to print which command timed out

With a possibly faulty disk the following messages may appear in the logs:

kernel: sd 0:0:9:0: timing out command, waited 180s
kernel: sd 0:0:9:0: timing out command, waited 20s
kernel: sd 0:0:9:0: timing out command, waited 20s
kernel: sd 0:0:9:0: timing out command, waited 60s
kernel: sd 0:0:9:0: timing out command, waited 20s

This is not very informative because it's not possible to identify the
command that timed out.

This patch replaces sdev_printk() with scmd_printk().
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/scsi_lib.c

@@ -1452,7 +1452,7 @@ static void scsi_softirq_done(struct request *rq)
 	disposition = scsi_decide_disposition(cmd);
 	if (disposition != SUCCESS &&
 	    time_before(cmd->jiffies_at_alloc + wait_for, jiffies)) {
-		sdev_printk(KERN_ERR, cmd->device,
+		scmd_printk(KERN_ERR, cmd,
 			    "timing out command, waited %lus\n",
 			    wait_for/HZ);
 		disposition = SUCCESS;