RDMA/hns: Fix the compatibility flag problem

driver inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I6ZBLL



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When the compatibility flag is interacted, the kernel space does
not confirm whether the user space has issued the flag but
responds directly, which will cause the flag to be received in
any scenario in the user space, and the current patch adds this
judgment.

Fixes: b3b7a525 ("RDMA/hns: Support cqe inline in user space")
Fixes: d67087cc ("RDMA/hns: Remove enable rq inline in kernel and add compatibility handling")
Signed-off-by: Luoyouming <luoyouming@huawei.com>