Fix trove role issue

* add the bind_host and bind_port option for trove api service
* add emptry upgrade.yml file

Change-Id: Ie861e43f98d513d2831303249ddf407de40bba2a

ansible/roles/trove/tasks/upgrade.yml

+---

ansible/roles/trove/templates/trove.conf.j2

@@ -2,8 +2,11 @@
 debug = {{ trove_logging_debug }}
 
 log_dir = /var/log/kolla/trove
-port = {{ trove_api_port }}
+
 host = {{ hostvars[inventory_hostname]['ansible_' + api_interface]['ipv4']['address'] }}
+
+bind_port = {{ trove_api_port }}
+bind_host = {{ hostvars[inventory_hostname]['ansible_' + api_interface]['ipv4']['address'] }}
 trove_api_workers = {{ openstack_service_workers }}
 auth_strategy = keystone