RDMA/hns: Update the verbs of polling for completion

RDMA/hns: Update the verbs of polling for completion

BugLink: http://bugs.launchpad.net/bugs/1756097
If the port is a RoCEv2 port, the remote port address and QP information
which returned for UD will be modified.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
(cherry picked from commit 2eade675351b0ef9e054ccb62334efd716aa853c)
Signed-off-by: Manoj Iyer <manoj.iyer@canonical.com>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>