Add a Tunnel end-point variable for Neutron configuration

The HOST_IP address is being used as IP address
for end-point tunnel configruation. A new variable is
needed to specify a different IP address for the tunnel
end-point that Neutron will use

Change-Id: Ic7fb4853df167e78bf882af6a712b903db754dc2
Closes-bug: #1340433
diff --git a/lib/neutron_plugins/openvswitch_agent b/lib/neutron_plugins/openvswitch_agent
index fbc013f..5adb0c5 100644
--- a/lib/neutron_plugins/openvswitch_agent
+++ b/lib/neutron_plugins/openvswitch_agent
@@ -48,7 +48,7 @@
             die $LINENO "You are running OVS version $OVS_VERSION. OVS 1.4+ is required for tunneling between multiple hosts."
         fi
         iniset /$Q_PLUGIN_CONF_FILE ovs enable_tunneling True
-        iniset /$Q_PLUGIN_CONF_FILE ovs local_ip $HOST_IP
+        iniset /$Q_PLUGIN_CONF_FILE ovs local_ip $TUNNEL_ENDPOINT_IP
     fi
 
     # Setup physical network bridge mappings.  Override