Update NVP plugin name for Neutron.

Module nicira_nvp_plugin no longer exists and it can be removed from
the plugin name.

Supports blueprint nicira_nvp_plugin

Change-Id: I19bdbb3c9e7aa05f672789766f3c0fd528682f03
diff --git a/lib/neutron_plugins/nicira b/lib/neutron_plugins/nicira
index 7642be6..9b9dbdc 100644
--- a/lib/neutron_plugins/nicira
+++ b/lib/neutron_plugins/nicira
@@ -42,7 +42,7 @@
     Q_PLUGIN_CONF_PATH=etc/neutron/plugins/nicira
     Q_PLUGIN_CONF_FILENAME=nvp.ini
     Q_DB_NAME="neutron_nvp"
-    Q_PLUGIN_CLASS="neutron.plugins.nicira.nicira_nvp_plugin.NeutronPlugin.NvpPluginV2"
+    Q_PLUGIN_CLASS="neutron.plugins.nicira.NeutronPlugin.NvpPluginV2"
 }
 
 function neutron_plugin_configure_debug_command() {