RDMA/hns: Fix wrong value of max_sge_rd

There is no difference between the sge of READ and non-READ
operations in hns RoCE. Set max_sge_rd to the same value as
max_send_sge.

Fixes: 9a44353 ("IB/hns: Add driver files for hns RoCE driver")
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
Link: https://patch.msgid.link/20250311084857.3803665-8-huangjunxian6@hisilicon.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>

Author: Junxian Huang

drivers/infiniband/hw/hns/hns_roce_main.c

@@ -183,7 +183,7 @@ static int hns_roce_query_device(struct ib_device *ib_dev,
 				  IB_DEVICE_RC_RNR_NAK_GEN;
 	props->max_send_sge = hr_dev->caps.max_sq_sg;
 	props->max_recv_sge = hr_dev->caps.max_rq_sg;
-	props->max_sge_rd = 1;
+	props->max_sge_rd = hr_dev->caps.max_sq_sg;
 	props->max_cq = hr_dev->caps.num_cqs;
 	props->max_cqe = hr_dev->caps.max_cqes;
 	props->max_mr = hr_dev->caps.num_mtpts;