Use 'system.foundation' image to bootstrap foundation node

Change-Id: I584d0cf080f647806145d98e73461169c5331129
diff --git a/tcp_tests/templates/heat-cicd-k8s-genie/underlay.hot b/tcp_tests/templates/heat-cicd-k8s-genie/underlay.hot
index a3a1152..9ae8f08 100644
--- a/tcp_tests/templates/heat-cicd-k8s-genie/underlay.hot
+++ b/tcp_tests/templates/heat-cicd-k8s-genie/underlay.hot
@@ -50,6 +50,9 @@
   net_public:
     type: string
 
+  foundation_image:
+    type: string
+
 resources:
   networks:
     type: MCP::Networks
@@ -266,6 +269,7 @@
       mcp_version: { get_param: mcp_version }
       instance_domain: {get_param: instance_domain}
       instance_name: foundation
+      instance_image: { get_param: foundation_image }
       instance_flavor: {get_param: foundation_flavor}
       network: { get_attr: [networks, network] }
       underlay_userdata: { get_file: ./underlay--user-data-foundation.yaml }