fix aodh warning

the memcache_servers has Deprecated ,and auth_uri is marked
deprecated . and these will cause aodh containers warning
refer to [0]
[0]https://docs.openstack.org/aodh/latest/configuration/aodh-config-file.html

Change-Id: I0c1eed6707fd85ace6b2bdddec600e5adee3a4de

ansible/roles/aodh/templates/aodh.conf.j2

@@ -17,8 +17,8 @@ connection = mysql+pymysql://{{ aodh_database_user }}:{{ aodh_database_password
 [keystone_authtoken]
 memcache_security_strategy = ENCRYPT
 memcache_secret_key = {{ memcache_secret_key }}
-memcache_servers = {% for host in groups['memcached'] %}{{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ memcached_port }}{% if not loop.last %},{% endif %}{% endfor %}
-auth_uri = {{ internal_protocol }}://{{ kolla_internal_fqdn }}:{{ keystone_public_port }}
+memcached_servers = {% for host in groups['memcached'] %}{{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ memcached_port }}{% if not loop.last %},{% endif %}{% endfor %}
+www_authenticate_uri = {{ internal_protocol }}://{{ kolla_internal_fqdn }}:{{ keystone_public_port }}
 project_domain_name = {{ default_project_domain_name }}
 project_name = service
 user_domain_name = {{ default_user_domain_name }}