Fix for staging override deployment

Issue-ID: INT-1217
Change-Id: I35f14f04b6e11b22747c9fb71d11ad4d3c1ddcf9
Signed-off-by: Brian Freeman <bf1936@att.com>
diff --git a/deployment/heat/onap-rke/onap-oom.yaml b/deployment/heat/onap-rke/onap-oom.yaml
index 7773497..2daf30a 100644
--- a/deployment/heat/onap-rke/onap-oom.yaml
+++ b/deployment/heat/onap-rke/onap-oom.yaml
@@ -233,6 +233,7 @@
           template:
             get_file: nfs_vm_entrypoint.sh
           params:
+            __additional_override__ : { get_param: additional_override} 
             __nfs_volume_id__: { get_resource: nfs_volume }
             __docker_proxy__: { get_param: docker_proxy }
             __apt_proxy__: { get_param: apt_proxy }