bnx2fc doesn't _actually_ need fcoemon, so fipvlan is sufficient
to start the FCoE connection.
And, in fact, fcoemon is started for every interface, causing
subsequent invocations to fail with
fcoemon[1157]: error 98 address already in use
and fcoemon tearing down the connection.
References: bsc#1052840
Signed-off-by: Hannes Reinecke <hare@suse.com>