Add overrides locking versions for nginx images

This commit adds the images and tags for the images used by nginx
in order for the application framework do download them with sysinv
during 'system application-apply'

Test Cases:

PASS: Built application successfully
PASS: Application install successful and pods are Running
PASS: Check that sysinv logs show images being downloaded from
      registry.local

Closes-Bug: 1971981
Depends-on: https://review.opendev.org/c/starlingx/ansible-playbooks/+/841789
Change-Id: I74b7c49ccb4ad87862831cbefcd5a66178b7521a
Signed-off-by: Rei Oliveira <Reinildes.JoseMateusOliveira@windriver.com>

stx-nginx-ingress-controller-helm/stx-nginx-ingress-controller-helm/fluxcd-manifests/ingress-nginx_ingress-nginx-static-overrides.yaml

@@ -10,6 +10,8 @@ controller:
   image:
     # cleans the default digest value since sysinv changes the digest when pushing the image to the local registry
     digest: ""
+    repository: k8s.gcr.io/ingress-nginx/controller
+    tag: v1.1.1
   daemonset:
     useHostPort: false
   nodeSelector:
@@ -33,12 +35,17 @@ controller:
     # default port 8443 conflicts with lighttpd using https
     port: 5443
     patch:
+      image:
+        digest: ""
+        repository: k8s.gcr.io/ingress-nginx/kube-webhook-certgen
+        tag: v1.1.1
       tolerations:
         - key: "node-role.kubernetes.io/master"
           operator: "Exists"
           effect: "NoSchedule"
 defaultBackend:
   image:
+    digest: ""
     repository: k8s.gcr.io/defaultbackend
     tag: "1.4"
   nodeSelector: