CLOUD-348 create dropdown for autoscaling policy hostgroup field
CLOUD-348 create dropdown for autoscaling policy hostgroup field

sequenceiq/cloudbreak,hortonworks/cloudbreak,hortonworks/cloudbreak,sequenceiq/cloudbreak,hortonworks/cloudbreak,sequenceiq/cloudbreak,sequenceiq/cloudbreak,sequenceiq/cloudbreak,hortonworks/cloudbreak,hortonworks/cloudbreak,hortonworks/cloudbreak