net: hns3: only enable unicast promisc when mac table full

mainline inclusion
from mainline-v6.6-rc3
commit f2ed3049
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I83ZCY
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f2ed304922a55690529bcca59678dd92d7466ce8



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Currently, the driver will enable unicast promisc for the function
once configure mac address fail. It's unreasonable when the failure
is caused by using same mac address with other functions. So only
enable unicast promisc when mac table full.

Fixes: c631c696 ("net: hns3: refactor the promisc mode setting")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Jiantao Xiao <xiaojiantao1@h-partners.com>