Add missing node groups for multicell nodeset

Signed-off-by: Bohdan Dobrelia <bdobreli@redhat.com>

Author: bogdando

zuul.d/nodeset.yaml

@@ -177,6 +177,15 @@
           - cell1-controller-0
           - cell2-controller-compute-0
           - cell1-compute-0
+      - name: tripleo_controllers
+        nodes:
+          - overcloud-controller-0
+          - cell1-controller-0
+          - cell2-controller-compute-0
+      - name: tripleo_computes
+        nodes:
+          - cell1-compute-0
+          - cell2-controller-compute-0
 
 - nodeset:
     name: centos-9-medium-centos-9-crc-extracted-2-39-0-3xl