add etcd to precheck
add etcd to precheck

add etcd client port and etcd peer port to precheck

TrivialFix

Change-Id: Iac10d82b77c7b38a472e0bea9f1e73c36db775b9

dardelean/kolla-ansible,coolsvap/kolla,stackforge/kolla,intel-onp/kolla,rahulunair/kolla,stackforge/kolla,openstack/kolla,openstack/kolla,coolsvap/kolla,coolsvap/kolla,intel-onp/kolla,dardelean/kolla-ansible,nihilifer/kolla,rahulunair/kolla,mrangana/kolla,stackforge/kolla,GalenMa/kolla,mrangana/kolla,dardelean/kolla-ansible,nihilifer/kolla,GalenMa/kolla