[SCSI] tgt: fix can_queue bug

should use host->can_queue instead of host->hostt->can_queue.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/scsi_tgt_lib.c

@@ -237,7 +237,7 @@ int scsi_tgt_alloc_queue(struct Scsi_Host *shost)
 	 * command as is recvd to userspace. uspace can then make
 	 * sure we do not overload the HBA
 	 */
-	q->nr_requests = shost->hostt->can_queue;
+	q->nr_requests = shost->can_queue;
 	/*
 	 * We currently only support software LLDs so this does
 	 * not matter for now. Do we need this for the cards we support?