import zuul job settings from project-config

This is a mechanically generated patch to complete step 1 of moving
the zuul job settings out of project-config and into each project
repository.

Because there will be a separate patch on each branch, the branch
specifiers for branch-specific jobs have been removed.

Because this patch is generated by a script, there may be some
cosmetic changes to the layout of the YAML file(s) as the contents are
normalized.

See the python3-first goal document for details:
https://governance.openstack.org/tc/goals/stein/python3-first.html

Change-Id: I13610729f2418b2ea4b62bdc3257457c816d96cf
Story: #2002586
Task: #24341

.zuul.yaml

@@ -1,5 +1,4 @@
 - project:
-    name: openstack/ansible-role-k8s-mariadb
     check:
       jobs:
         - ansible-role-k8s-mariadb-kubernetes-centos
@@ -34,7 +33,7 @@
 
 - job:
     name: ansible-role-k8s-mariadb-openshift-centos
-    parent:  ansible-role-k8s-base
+    parent: ansible-role-k8s-base
     nodeset: ansible-role-k8s-centos
     voting: false
     vars: