Fix openshift_hosted_registry_storage_glusterfs_path

Regression in https://github.com/openshift/openshift-ansible/pull/6969
reverted openshift_hosted_registry_storage_glusterfs_path
to old format from openshift_facts.

This commit corrects this regression.

Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1542406