Use undercloud base parent in undercloud upgrade job

Earlier we were using singlenode parent from base.yaml.
Since we have undercloud distro base jobs is already available,
we can re-use the same and remove the singlenode parent.

It also cleans up old singlenode cs8 base jobs and moves
c8s undercloud upgrade job to upgrade template.
These jobs are used as a parent in stable branches job.

https://review.rdoproject.org/r/q/topic:cs-parenting-undercloud-upgrade
cleans up the reference from rdo side.

Signed-off-by: Chandan Kumar (raukadah) <chkumar@redhat.com>
Change-Id: If54577079cf61d82e88aa84a414d6e3c288138b1

zuul.d/base.yaml

@@ -223,35 +223,6 @@
         - undercloud-validate
         - images
 
-- job:
-    name: tripleo-ci-base-singlenode-centos-8
-    abstract: true
-    description: |
-        Base abstract job for singlenode TripleO CI centos-8 zuulv3 jobs
-    parent: tripleo-ci-base-centos-8
-    nodeset: single-centos-8-node
-    pre-run: playbooks/tripleo-ci/install-built-repo.yml
-    vars:
-      undercloud: 127.0.0.2
-      environment_infra: osinfra
-      environment_type: singlenode
-      common_featureset: featureset-multinode-common.yml
-      playbooks:
-        - quickstart.yml
-        - multinode-undercloud.yml
-        - multinode-undercloud-upgrade.yml
-        - multinode-overcloud-prep.yml
-        - multinode-overcloud.yml
-        - multinode-overcloud-upgrade.yml
-        - multinode-validate.yml
-      tags:
-        - build
-        - undercloud-setup
-        - undercloud-scripts
-        - undercloud-install
-        - undercloud-validate
-        - images
-
 - job:
     name: tripleo-ci-base-standalone
     abstract: true

zuul.d/deprecated-jobs.yaml

@@ -164,18 +164,6 @@
       extra_tags:
         - overcloud-upgrade
 
-- job:
-    name: tripleo-ci-centos-8-undercloud-upgrade
-    parent: tripleo-ci-base-singlenode-centos-8
-    branches: ^master$
-    voting: true
-    vars:
-      featureset: '050'
-      featureset_override:
-        validate_services: false
-      extra_tags:
-        - undercloud-upgrade
-
 - job:
     name: tripleo-ci-centos-8-scenario000-multinode-oooq-container-updates
     description: |

zuul.d/upgrades-jobs-templates.yaml

@@ -405,7 +405,7 @@
 
 - job:
     name: tripleo-ci-centos-8-undercloud-upgrade-ussuri
-    parent: tripleo-ci-base-singlenode-centos-8
+    parent: tripleo-ci-base-undercloud-centos-8
     branches: ^stable/ussuri$
     voting: true
     vars:
@@ -417,7 +417,7 @@
 
 - job:
     name: tripleo-ci-centos-8-undercloud-upgrade-victoria
-    parent: tripleo-ci-base-singlenode-centos-8
+    parent: tripleo-ci-base-undercloud-centos-8
     branches: ^stable/victoria$
     voting: true
     vars:
@@ -429,7 +429,7 @@
 
 - job:
     name: tripleo-ci-centos-8-undercloud-ffu-wallaby
-    parent: tripleo-ci-base-singlenode-centos-8
+    parent: tripleo-ci-base-undercloud-centos-8
     branches: ^stable/wallaby$
     voting: true
     vars:
@@ -442,8 +442,20 @@
 ## CentOS 9 Undercloud Upgrade
 - job:
     name: tripleo-ci-centos-9-undercloud-upgrade
-    parent: tripleo-ci-base-singlenode-centos-8
-    nodeset: single-centos-9-node
+    parent: tripleo-ci-base-undercloud-centos-9
+    branches: ^master$
+    voting: true
+    vars:
+      featureset: '050'
+      featureset_override:
+        validate_services: false
+      extra_tags:
+        - undercloud-upgrade
+
+## CentOS 8 undercloud upgrade
+- job:
+    name: tripleo-ci-centos-8-undercloud-upgrade
+    parent: tripleo-ci-base-undercloud-centos-8
     branches: ^master$
     voting: true
     vars: