Description of problem:

TASK [openshift_master : Ensure that docker-gc daemonset has nodes to run on] ***
Thursday 08 March 2018  16:26:43 +0000 (0:00:00.699)       0:12:32.002 ******** 
fatal: [ec2-34-212-24-46.us-west-2.compute.amazonaws.com]: FAILED! => {
    "assertion": false, 
    "changed": false, 
    "evaluated_to": false, 
    "failed": true, 
    "msg": "No schedulable nodes found matching node selector for docker-gc daemonset - 'runtime=cri-o'"
}

Version-Release number of the following components:
rpm -q openshift-ansible
latest on release-3.9 branch

rpm -q ansible
ansible-2.4.3.0-1.el7ae.noarch

ansible --version
ansible 2.4.3.0
  config file = /etc/ansible/ansible.cfg
  configured module search path = [u'/root/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python2.7/site-packages/ansible
  executable location = /usr/bin/ansible
  python version = 2.7.5 (default, Feb 20 2018, 09:19:12) [GCC 4.8.5 20150623 (Red Hat 4.8.5-28)]

How reproducible:
when runtime is cri-o

Steps to Reproduce:
1. run deploy_cluster playbook when inv has use_crio true
2. see ansible output

Actual results:
Install fails because inventory does not have labels where dockerdc ds pods should run.
No schedulable nodes found matching node selector for docker-gc daemonset - 'runtime=cri-o'

Expected results:
Install should be able to figure out where Runtime is cri-o and add labels on those nodes.

Additional info:
Please attach logs from ansible-playbook with the -vvv flag