RDMA/hns: Add ROH basic configuration and check

driver inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I5WKYW



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ROH MAC do not support ROCEv1 and ROCEv2@IPv6.
ROCE driver adapts to these limiations.

Signed-off-by: Lang Cheng <chenglang@huawei.com>
Signed-off-by: Ke Chen <chenke54@huawei.com>
Reviewed-by: Yangyang Li <liyangyang20@huawei.com>