Add DFW opendev.org mirror back
This host is now running openafs 1.8.3 from
Put it back in rotation to stress test
# new opendev.org based mirrors, but then eventually be removed once
# all are updated.
zuul_site_mirror_fqdn: >-
- {%- if nodepool.region + "." + nodepool.cloud in [ "IAD.rax" ] -%}
+ {%- if nodepool.region + "." + nodepool.cloud in [ "IAD.rax", "DFW.rax" ] -%}
mirror.{{ nodepool.region | lower }}.{{ nodepool.cloud | lower }}.opendev.org
{%- else -%}
mirror.{{ nodepool.region | lower }}.{{ nodepool.cloud | lower }}.openstack.org
