net/bonding: fix LACP system address check

net/bonding: fix LACP system address check

In bond (LACP) we have several NICs (ports), when we have negotiation
with peer about what port we prefer, we send information about what
system we preferred in partner system name field. Peer also sends us
what partner system name it prefer.

When we receive a message from it we must compare its preferred system
name with our system name, but not with our port mac address

In my test I have several problems with that:
1. If master port (mac address same as system address) shuts down (I
   have two ports) I loose connection
2. If secondary port (mac address not same as system address) receives
   message before master port, my connection is not established.

Fixes: 56cbc0817399 ("net/bonding: fix LACP negotiation")
Cc: stable@dpdk.org
Signed-off-by: Vadim Podovinnikov <podovinnikov@protei.ru>
Acked-by: Min Hu (Connor) <humin29@huawei.com>