net/hinic: VF does not display firmware statistics

driver inclusion
category: bugfix
bugzilla: 4472

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It takes a long time to obtain the firmware statistics, which can easily
cause the hot migration to fail. Therefore, delete the firmware statistics
of the VF, and the corresponding statistics can be obtained from the PF.

Signed-off-by: Chiqijun <chiqijun@huawei.com>
Reviewed-by: Luoshaokai <luoshaokai@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>