ide: ide-atapi: fix compile error with defining macro DEBUG

Compile ide-atapi failed with defining macro "DEBUG"
...
|drivers/ide/ide-atapi.c:285:52: error: 'struct request' has
no member named 'cmd'; did you mean 'csd'?
|  debug_log("%s: rq->cmd[0]: 0x%x\n", __func__, rq->cmd[0]);
...

Since we split the scsi_request out of struct request, it missed
do the same thing on debug_log

Fixes: 82ed4db499b8 ("block: split scsi_request out of struct request")

Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

drivers/ide/ide-atapi.c

@@ -282,7 +282,7 @@ int ide_cd_expiry(ide_drive_t *drive)
 	struct request *rq = drive->hwif->rq;
 	unsigned long wait = 0;
 
-	debug_log("%s: rq->cmd[0]: 0x%x\n", __func__, rq->cmd[0]);
+	debug_log("%s: scsi_req(rq)->cmd[0]: 0x%x\n", __func__, scsi_req(rq)->cmd[0]);
 
 	/*
 	 * Some commands are *slow* and normally take a long time to complete.
@@ -463,7 +463,7 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive)
 				return ide_do_reset(drive);
 			}
 
-			debug_log("[cmd %x]: check condition\n", rq->cmd[0]);
+			debug_log("[cmd %x]: check condition\n", scsi_req(rq)->cmd[0]);
 
 			/* Retry operation */
 			ide_retry_pc(drive);
@@ -531,7 +531,7 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive)
 		ide_pad_transfer(drive, write, bcount);
 
 	debug_log("[cmd %x] transferred %d bytes, padded %d bytes, resid: %u\n",
-		  rq->cmd[0], done, bcount, scsi_req(rq)->resid_len);
+		  scsi_req(rq)->cmd[0], done, bcount, scsi_req(rq)->resid_len);
 
 	/* And set the interrupt handler again */
 	ide_set_handler(drive, ide_pc_intr, timeout);