Currently, PF missed to clear the port base VLAN for VF when
unload. In this case, the VLAN id will remain in the VLAN
table. This patch fixes it.

Fixes: 92f11ea1 ("net: hns3: fix set port based VLAN issue for VF")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>