RDMA/hns: Fix AH attr queried by query_qp

RDMA/hns: Fix AH attr queried by query_qp

The queried AH attr is invalid. This patch fix it.

This problem is found by rdma-core test test_mr_rereg_pd

ERROR: test_mr_rereg_pd (tests.test_mr.MRTest)
Test that cover rereg MR's PD with this flow:
----------------------------------------------------------------------
Traceback (most recent call last):
  File "./tests/test_mr.py", line 157, in test_mr_rereg_pd
    self.restate_qps()
  File "./tests/test_mr.py", line 113, in restate_qps
    self.server.qp.to_rts(self.server_qp_attr)
  File "qp.pyx", line 1137, in pyverbs.qp.QP.to_rts
  File "qp.pyx", line 1123, in pyverbs.qp.QP.to_rtr
pyverbs.pyverbs_error.PyverbsRDMAError: Failed to modify QP state to RTR.
Errno: 22, Invalid argument

Fixes: 926a01dc000d ("RDMA/hns: Add QP operations support for hip08 SoC")
Link: https://lore.kernel.org/r/20221126102911.2921820-3-xuhaoyue1@hisilicon.com
Signed-off-by: Chengchang Tang <tangchengchang@huawei.com>
Signed-off-by: Haoyue Xu <xuhaoyue1@hisilicon.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>