Fix grafana listener options to allow affinity
Fix grafana listener options to allow affinity

Like the other web based services, we need to enable
the source affinity to access the grafana instance
through the haproxy vip.

Closes-Bug: 1854337
Change-Id: I3c6e8dd2d4a48f5c63311d9c37181c2f26b595ea

openstack/puppet-tripleo,openstack/puppet-tripleo,openstack/puppet-tripleo