Use UpgradeInitCommonCommand with deployed-server too

We've hit an issue in multinode CI that Ansible wasn't getting updated
during `upgrade prepare`. UpgradeInitCommonCommand wasn't being
executed because it was left out from deployed-server.yaml.

Change-Id: I940c3e05944829a6a4155722181e5fa85a963660
Closes-Bug: #1776474

deployed-server/deployed-server.yaml

@@ -45,6 +45,14 @@ parameters:
       Command or script snippet to run on all overcloud nodes to
       initialize the upgrade process. E.g. a repository switch.
     default: ''
+  UpgradeInitCommonCommand:
+    type: string
+    description: |
+      Common commands required by the upgrades process. This should not
+      normally be modified by the operator and is set and unset in the
+      major-upgrade-composable-steps.yaml and major-upgrade-converge.yaml
+      environment files.
+    default: ''
   deployment_swift_data:
     type: json
     default: {}
@@ -71,6 +79,7 @@ resources:
         - - "#!/bin/bash\n\n"
           - "if [[ -f /etc/resolv.conf.save ]] ; then rm /etc/resolv.conf.save; fi\n\n"
           - get_param: UpgradeInitCommand
+          - get_param: UpgradeInitCommonCommand
 
   UpgradeInitDeployment:
     type: OS::Heat::SoftwareDeployment