virtio_ring: split: Operators use unified style

The operators of vring_alloc_queue_split should use the unified style.Add
space for the '|' ,make it be looked more pretty.
Signed-off-by: Deming Wang <wangdeming@inspur.com>
Message-Id: <20220926022202.1516-1-wangdeming@inspur.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

drivers/virtio/virtio_ring.c

@@ -1066,7 +1066,7 @@ static int vring_alloc_queue_split(struct vring_virtqueue_split *vring_split,
 	if (!queue) {
 		/* Try to get a single page. You are my only hope! */
 		queue = vring_alloc_queue(vdev, vring_size(num, vring_align),
-					  &dma_addr, GFP_KERNEL|__GFP_ZERO);
+					  &dma_addr, GFP_KERNEL | __GFP_ZERO);
 	}
 	if (!queue)
 		return -ENOMEM;