hinic: add net_device_ops associated with vf

adds ndo_set_vf_mac/ndo_set_vf_vlan/ndo_get_vf_config and
ndo_set_vf_trust to configure netdev of virtual function

Signed-off-by: Luo bin <luobin9@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>