net: hns: fix non-promiscuous mode does not take effect problem

driver inclusion
category: bugfix
bugzilla: NA
CVE: NA

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When disable promisc mode after enable promisc mode, the
non-promiscuous mode does not take effect.

The driver use the last 12 mac table for promisc mode(6 ports,
each port have a mc vague mac table and a uc vague mac table).
But when disabling promisc mode, the driver did not look for the
last 12 vague mac table, cause this problem.

Fixes: 421ccc3859d6 ("net: hns: fix ping failed when use net bridge and send multicast")
Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Reviewed-by: li yongxin <liyongxin1@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Cheng Jian <cj.chengjian@huawei.com>