setup-openstack-client: Apply DNS settings on SP node as well

Change-Id: I12f6f5621b5a64c7959ea9652b44ed38f693f2e1
diff --git a/playbooks/setup-openstack-client/pre.yaml b/playbooks/setup-openstack-client/pre.yaml
index 2534c6e..67e0b01 100644
--- a/playbooks/setup-openstack-client/pre.yaml
+++ b/playbooks/setup-openstack-client/pre.yaml
@@ -1,6 +1,5 @@
-- hosts: undercloud-client
-  vars_files:
-    - vars.yaml
+---
+- hosts: undercloud-client, lab-sp-a1
   tasks:
     # TODO: To be removed once DNS starts working again.
     - name: Provision systemd-resovled Configuration
@@ -16,6 +15,10 @@
         name: systemd-resolved
         state: restarted
 
+- hosts: undercloud-client
+  vars_files:
+    - vars.yaml
+  tasks:
     - name: Ensure OpenStack Credentials Directory Exists
       ansible.builtin.file:
         path: "{{ os_creds_dir }}"