!213 net: bonding: Inherit MPLS features from slave devices

Merge Pull Request from: @CTC-XiboWang 
 
This PR is cherry-pick from upstream "net: bonding: Inherit MPLS features from slave devices"

Upstream patch:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/net/bonding?id=2e770b507ccde8eedc129946e4b78ceed0a22df2 
 
Link:https://gitee.com/openeuler/kernel/pulls/213

 

Reviewed-by: Laibin Qiu <qiulaibin@huawei.com>
Reviewed-by: Zheng Zengkai <zhengzengkai@huawei.com>
Reviewed-by: Jackie Liu <liuyun01@kylinos.cn>
Reviewed-by: Yue Haibing <yuehaibing@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>