Update supported operating systems list
Update supported operating systems list

Change-Id: I99ff1b98e7485d85776e4aeb9fb0a5f1cf43cbbb

devananda/bifrost,EntropyWorks/bifrost,openstack/bifrost,devananda/bifrost,bcornec/bifrost,openstack/bifrost,EntropyWorks/bifrost,bcornec/bifrost