net: hns: Fix WARNING when hns modules installed

Commit dfdf26babc98 upstream

this patch need merge to 4.19.y stable kernel

Fix Conflict:already fixed the confilct dfdf26babc98 with Yonglong Liu

stable candidate:user cannot connect to the internet via hns dev
by default setting without this patch

we have already verified this patch on kunpeng916 platform,
and it works well.

Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Jun Xiao <xiaojun2@hisilicon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>