nvme-tcp: use ctrl sgl check helper

Use the helper to check NVMe controller's SGL support.
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

drivers/nvme/host/tcp.c

@@ -1993,7 +1993,7 @@ static int nvme_tcp_setup_ctrl(struct nvme_ctrl *ctrl, bool new)
 		goto destroy_admin;
 	}
 
-	if (!(ctrl->sgls & ((1 << 0) | (1 << 1)))) {
+	if (!nvme_ctrl_sgl_supported(ctrl)) {
 		ret = -EOPNOTSUPP;
 		dev_err(ctrl->device, "Mandatory sgls are not supported!\n");
 		goto destroy_admin;