health: Fixing network host computation
health: Fixing network host computation

The computation of the number of available host was considering the
number of hypervisors and not the number of hosts.

This did prevent the benchmark to run.

lebauce/edeploy,lebauce/edeploy,enovance/edeploy,lebauce/edeploy,redhat-cip/edeploy,lebauce/edeploy,redhat-cip/edeploy,redhat-cip/edeploy,redhat-cip/edeploy,enovance/edeploy,enovance/edeploy,enovance/edeploy