kolla: Discover the newly-created interfaces

Change-Id: I54e8ccf1c09537acd2886638f3b3b9f2f369c5ee
diff --git a/playbooks/kolla-setup-openstack-iscsi-multipath-storpool/pre.yaml b/playbooks/kolla-setup-openstack-iscsi-multipath-storpool/pre.yaml
index 81d4daf..e1504be 100644
--- a/playbooks/kolla-setup-openstack-iscsi-multipath-storpool/pre.yaml
+++ b/playbooks/kolla-setup-openstack-iscsi-multipath-storpool/pre.yaml
@@ -120,6 +120,9 @@
       ansible.builtin.command:
         argv: [ "systemctl", "restart", "systemd-networkd" ]
 
+    - name: Discover the newly-created interfaces
+      ansible.builtin.gather_facts:
+
     - name: Find the Name of Interface for 'network_interface'
       set_fact:
         kolla_network_interface: "{{ item }}"