commands: report host interface: don't create ifcfg file if not needed

if the interface does not have any conifugration parameters do not
create an empty ifcfg-ifname file inside /etc/sysconfig/network-scripts/
command: report host interface: if infiniband interface do not bridge

In a KVM container node, if the interface name starts with 'ib' do not
do any bridging with the interface.