ide: set IDE_AFLAG_DRQ_INTERRUPT in do_identify()

Set IDE_AFLAG_DRQ_INTERRUPT in do_identify() instead of ATAPI
device drivers *_setup() methods.

While at it:
- use ata_id_cdb_intr()

There should be no functional changes caused by this patch.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 3269cbf..bce427e 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -206,6 +206,8 @@
 		drive->media = type;
 		/* an ATAPI device ignores DRDY */
 		drive->ready_stat = 0;
+		if (ata_id_cdb_intr(id))
+			drive->atapi_flags |= IDE_AFLAG_DRQ_INTERRUPT;
 		return;
 	}