Fix etcd container check failed

mode is unsupported parameters for (kolla_docker) module[0].

[0]: https://github.com/openstack/kolla-ansible/blob/master/ansible/library/kolla_docker.py#L726



Co-Authored-By: wu.chunyang <wu.chunyang@99cloud.net>
Closes-Bug: #1766170

Change-Id: I06077e09773f6b263e11b0579a74aaf8f73c1110