net/hinic: Number of VF queues cleared during initialization

driver inclusion
category: bugfix
bugzilla: 4472

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According to the number of queues set by the VF driver during hot
migration, determine whether data migration is required, and clear
the number of queues after the driver is reloaded to prevent accidental
migration of useless data.

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