Small fixes for RHV provider: 1. Better description on how to get the Engine CA certificate. 2. Better default for the public SSH key 3. Use (for oVirt) a compressed qcow2 CentOS cloud image - faster to download.
Small fixes for RHV provider:
1. Better description on how to get the Engine CA certificate.
2. Better default for the public SSH key
3. Use (for oVirt) a compressed qcow2 CentOS cloud image - faster
to download.

openshift/openshift-ansible-contrib,cwilkers/openshift-ansible-contrib,cwilkers/openshift-ansible-contrib,cwilkers/openshift-ansible-contrib,openshift/openshift-ansible-contrib,openshift/openshift-ansible-contrib,openshift/openshift-ansible-contrib,dav1x/openshift-ansible-contrib,cwilkers/openshift-ansible-contrib,dav1x/openshift-ansible-contrib,dav1x/openshift-ansible-contrib,dav1x/openshift-ansible-contrib