driver inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I6J5O7

---------------------------------------------------------------

hns roce support 4 congestion control algorithms. Each algorihm
involves multiple parameters. This patch add port sysfs directory
for each algorithm, which allows users to modify the parameters
of these algorithms.
Signed-off-by: NChengchang Tang <tangchengchang@huawei.com>
Reviewed-by: NYangyang Li <liyangyang20@huawei.com>