ILO7 compatibility

When trying to shutdown or start HP Gen12 Servers with ILO7 using the ansible module hpilo_boot I get the error 
`hpilo.py\", line 527, in _communicate\n    raise IloError(\"Remote returned bogus data, maybe it's not an iLO\")\nhpilo.IloError: Remote returned bogus data, maybe it's not an iLO\n"
`

It looks like the response of ILO7 systems looks different from the previous ILO versions.