nvmet: the result field in nvmet_alloc_ctrl_args is little endian

So use the __le32 type for it.

Fixes: 6202783 ("nvmet: Improve nvmet_alloc_ctrl() interface and implementation")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Keith Busch <kbusch@kernel.org>

drivers/nvme/target/nvmet.h

@@ -582,7 +582,7 @@ struct nvmet_alloc_ctrl_args {
 	const struct nvmet_fabrics_ops *ops;
 	struct device		*p2p_client;
 	u32			kato;
-	u32			result;
+	__le32			result;
 	u16			error_loc;
 	u16			status;
 };