notification_driver is deprecated to driver

TrivialFix
https://review.openstack.org/#/c/249508/

Change-Id: I18599c7221272279dfc2e9f5b297af09faff5c3b
diff --git a/lib/glance b/lib/glance
index 19e7937..0431bba 100644
--- a/lib/glance
+++ b/lib/glance
@@ -113,7 +113,7 @@
     iniset $GLANCE_REGISTRY_CONF DEFAULT workers "$API_WORKERS"
     iniset $GLANCE_REGISTRY_CONF paste_deploy flavor keystone
     configure_auth_token_middleware $GLANCE_REGISTRY_CONF glance $GLANCE_AUTH_CACHE_DIR/registry
-    iniset $GLANCE_REGISTRY_CONF DEFAULT notification_driver messaging
+    iniset $GLANCE_REGISTRY_CONF oslo_messaging_notifications driver messaging
     iniset_rpc_backend glance $GLANCE_REGISTRY_CONF
     iniset $GLANCE_REGISTRY_CONF DEFAULT graceful_shutdown_timeout "$SERVICE_GRACEFUL_SHUTDOWN_TIMEOUT"
 
@@ -126,7 +126,7 @@
     iniset $GLANCE_API_CONF DEFAULT image_cache_dir $GLANCE_CACHE_DIR/
     iniset $GLANCE_API_CONF paste_deploy flavor keystone+cachemanagement
     configure_auth_token_middleware $GLANCE_API_CONF glance $GLANCE_AUTH_CACHE_DIR/api
-    iniset $GLANCE_API_CONF DEFAULT notification_driver messaging
+    iniset $GLANCE_API_CONF oslo_messaging_notifications driver messaging
     iniset_rpc_backend glance $GLANCE_API_CONF
     if [ "$VIRT_DRIVER" = 'xenserver' ]; then
         iniset $GLANCE_API_CONF DEFAULT container_formats "ami,ari,aki,bare,ovf,tgz"