Mend frr tunnel ip option

Related-Bug: PRODX-11810
Change-Id: I0166ac3be0f7cbae310629c89203459778f3bf9e
diff --git a/de/heat-templates/top.yaml b/de/heat-templates/top.yaml
index 5a0ab27..d574d0e 100644
--- a/de/heat-templates/top.yaml
+++ b/de/heat-templates/top.yaml
@@ -899,7 +899,7 @@
     value: { get_attr: [frrs, server_public_ip] }
   frrs_tunnel_ips:
     description: The tunnel IPs of FRR nodes
-    value: { get_attr: [frrs, server_tunnel_ip] }
+    value: { get_attr: [frrs, server_tun_ip] }
   worker_private_floating_ips:
     description: IPs might be used as gateway
     value: {if: [aio_deploy, {get_attr: [ucp, server_private_floating_ip]}, {get_attr: [workers, server_private_floating_ip]}]}