RDMA/hns: Remove enable rq inline in kernel and add compatibility handling

driver inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I5USIG



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The rq inline makes some changes as follows, Firstly, it is only
used in user space. Secondly, it should notify hardware in QP RTR
status. Thirdly, Add compatibility processing between different
user space and kernel space. Change the HNS_ROCE_CAP_FLAG_RQ_INLINE
to a new bit to prevent old kernel spaces / spaced from enabling
rq inline.

Signed-off-by: Luoyouming <luoyouming@huawei.com>
Reviewed-by: Yangyang Li <liyangyang20@huawei.com>
Reviewed-by: Haoyue Xu <xuhaoyue1@hisilicon.com>
Reviewed-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>