Fixed functional test SetupNetworksAddBondWithManyVlans

Change-Id: I751af9bd1f99682da963cf47f47d25743fc012c7
Signed-off-by: Assaf Muller <amuller@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/17150
Reviewed-by: Dan Kenigsberg <danken@redhat.com>