Revert "Temporarily disable voting for FIPS job"

This reverts commit 57fb686b20451753e609729e96a7f04729769bbc.

Reason for revert: FIPS job working now
Depends-On: https://review.opendev.org/c/zuul/zuul-jobs/+/844704

Change-Id: I262ace1bb54192a9c998cf17a0dcd2b9fc7ae0a2

.zuul.yaml

@@ -29,6 +29,8 @@
     description: |
       Functional testing for a FIPS enabled Centos 8 system
     pre-run: playbooks/enable-fips.yaml
+    vars:
+      nslookup_target: 'opendev.org'
 
 - job:
     name: barbican-vault-tox-functional
@@ -100,8 +102,7 @@
         - barbican-tempest-plugin-simple-crypto
         - barbican-tempest-plugin-simple-crypto-secure-rbac
         - barbican-tempest-plugin-simple-crypto-ipv6-only
-        - barbican-tox-functional-fips:
-            voting: false
+        - barbican-tox-functional-fips
         - octavia-v2-dsvm-tls-barbican
         # TripleO jobs that deploy Barbican.
         # Note we don't use a project-template here, so it's easier