nvme: Add admin_tagset pointer to nvme_ctrl

Will be used when we centralize control flows.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index 1438be6..1912df4 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -2731,6 +2731,7 @@
 	ret = blk_mq_alloc_tag_set(&ctrl->admin_tag_set);
 	if (ret)
 		goto out_free_queues;
+	ctrl->ctrl.admin_tagset = &ctrl->admin_tag_set;
 
 	ctrl->ctrl.admin_q = blk_mq_init_queue(&ctrl->admin_tag_set);
 	if (IS_ERR(ctrl->ctrl.admin_q)) {