hns3 udma: support config and query parameters of SCC algorithms

driver inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I85R2F


CVE: NA

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This patch supports config and query parameters of congestion control
algorithms, which as known as SCC. UDMA driver will generates sysfs nodes
corresponding to SCC parameters in /sys/class/net/<iface>/device/cc_param,
and read/write sysfs device attributes is equivalent to query/config
parameters.

Signed-off-by: Yu Zhang <zhangyu709@huawei.com>