e2e: add etcd pods info and failed pod logs
e2e: add etcd pods info and failed pod logs

hongchaodeng/etcd-operator,coreos/etcd-operator,icyxieex/operator,coreos/etcd-operator,fatduo/etcd-operator,fatduo/etcd-operator,hongchaodeng/etcd-operator,icyxieex/operator