RDMA/hns: Modify pi vlaue when cq overflows

driver inclusion
category: bugfix
bugzilla: NA
CVE: NA

When exiting "for loop", the actual value of pi will be
increased by 1, which is compatible with the next calculation.
But when pi is equal to "ci + hr_cq-> ib_cq.cqe", the "break"
was called and the pi is actual value, it will lead one cqe
still existing, so the "==" should be modify to ">".

Feature or Bugfix:Bugfix
Signed-off-by: NYangyang Li <liyangyang20@huawei.com>
Signed-off-by: Nliyangyang (M) <liyangyang20@huawei.com>
Reviewed-by: Noulijun <oulijun@huawei.com>
Reviewed-by: Nliuyixian <liuyixian@huawei.com>
Reviewed-by: NYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

drivers/infiniband/hw/hns/hns_roce_hw_v2.c

@@ -2781,7 +2781,7 @@ static void __hns_roce_v2_cq_clean(struct hns_roce_cq *hr_cq, u32 qpn,
 
 	for (prod_index = hr_cq->cons_index; get_sw_cqe_v2(hr_cq, prod_index);
 	     ++prod_index) {
-		if (prod_index == hr_cq->cons_index + hr_cq->ib_cq.cqe)
+		if (prod_index > hr_cq->cons_index + hr_cq->ib_cq.cqe)
 			break;
 	}