net: hns3: add support for FD counter

driver inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I6A42Q


CVE: NA

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FD counter is used to count the number of times that the Flow Table rule
is hit. It is helpful when user want to take the accurate statistics of
some rules.

Signed-off-by: liaoguojia <liaoguojia@huawei.com>
Signed-off-by: Jiantao Xiao <xiaojiantao1@h-partners.com>