[tripleo-overcloud] Help introspection along if need be
[tripleo-overcloud] Help introspection along if need be

Sometimes, on OSP10 in particular, introspection succeeds
but there are some nodes which are left in a 'manageable'
state instead of an 'available' state. For this case we
manually force the state to 'manageable'.

Change-Id: I7e36c433e4679264b6ad37e48aaaa44afc5f320a

redhat-openstack/infrared,redhat-openstack/infrared,redhat-openstack/infrared