Quantum: use generic VIF driver

For plugins that support VIF bindings, make use of the
LibvirtGenericVIFDriver libvirt vif driver. The plugin
returns the VIF type to Nova which inturn "knows" what
to do.

Change-Id: I82982a9f1324db878439aa6bbee38bd205f073d0
diff --git a/lib/quantum_plugins/openvswitch b/lib/quantum_plugins/openvswitch
index a57336e..dda1239 100644
--- a/lib/quantum_plugins/openvswitch
+++ b/lib/quantum_plugins/openvswitch
@@ -8,7 +8,7 @@
 source $TOP_DIR/lib/quantum_plugins/ovs_base
 
 function quantum_plugin_create_nova_conf() {
-    NOVA_VIF_DRIVER=${NOVA_VIF_DRIVER:-"nova.virt.libvirt.vif.LibvirtHybridOVSBridgeDriver"}
+    NOVA_VIF_DRIVER=${NOVA_VIF_DRIVER:-"nova.virt.libvirt.vif.LibvirtGenericVIFDriver"}
     if [ "$VIRT_DRIVER" = 'xenserver' ]; then
         iniset $NOVA_CONF DEFAULT xenapi_vif_driver nova.virt.xenapi.vif.XenAPIOpenVswitchDriver
         iniset $NOVA_CONF DEFAULT xenapi_ovs_integration_bridge $FLAT_NETWORK_BRIDGE