RDMA/hns: Export symbol for roce-customer

driver inclusion
category: bugfix
bugzilla: NA
CVE: NA

Add new items for set_mtpt_pbl, It is a
requirement only for Application, and no
need to upstream.

Feature or Bugfix:Feature

Signed-off-by: wangsirong <wangsirong@huawei.com>
Signed-off-by: liyangyang (M) <liyangyang20@huawei.com>
Reviewed-by: oulijun <oulijun@huawei.com>
Reviewed-by: liuyixian <liuyixian@huawei.com>
Reviewed-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>