md: open code md_probe in autorun_devices

autorun_devices should not be limited to the controls for the legacy
probe on open, so just call md_alloc directly.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-and-tested-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

drivers/md/md.c

@@ -6500,7 +6500,7 @@ static void autorun_devices(int part)
 			break;
 		}
 
-		md_probe(dev);
+		md_alloc(dev, NULL);
 		mddev = mddev_find(dev);
 		if (!mddev)
 			break;