RDMA/hns: Fix wrong fixed value of qp->rq.wqe_shift

RDMA/hns: Fix wrong fixed value of qp->rq.wqe_shift

[ Upstream commit 0c8b5d6268d92d141bfd64d21c870d295a84dee1 ]

The value of qp->rq.wqe_shift of HIP08 is always determined by the number
of sge. So delete the wrong branch.

Fixes: cfc85f3e4b7f ("RDMA/hns: Add profile support for hip08 driver")
Fixes: 926a01dc000d ("RDMA/hns: Add QP operations support for hip08 SoC")
Link: https://lore.kernel.org/r/20220829105021.1427804-3-liangwenpeng@huawei.com
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>