net: hns3: refine mac address configure for VF

driver inclusion
category: bugfix
bugzilla: NA
CVE: NA

Currently, the HNS3 driver sync and unsync mac address in function
hns3_set_rx_mode(). For VF, it sends mailbox messages to PF to
request adding or deleting mac address in the path of function
hns3_set_rx_mode(), no matter the address is configured success.
This patch refines it by sending the mac address configure request
in the service task of VF, and adding or deleting these mac
addresses in the service task. Either is failed, it will retry in
the next schedule of service task.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Reviewed-by: Peng Li <lipeng321@huawei.com>
Reviewed-by: Zhong Zhaohui <zhongzhaohui@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>