2a9721eb26
In order to allow definition of policies per service, we need to add variables to service roles, that will be passed to openstack.osa.mq_setup. Currently this can be handled by leveraging group_vars and overriding `oslomsg_rpc_policies` as a whole, but it's not obvious and can be non-trivial for some groups which are co-locating multiple services or in case of metal deployments. Change-Id: I1258e2dc385d8d004091167835e9c14e314cbc2b