Georgina Shippey 84e9f96712 Update galera_wsrep_sst_auth_user to use galera_root_user
With the changes to the root user and creation of the admin user in:
https://review.opendev.org/c/openstack/openstack-ansible/+/775684/
galera_wsrep_sst_auth_user needs to use the overridden galera_root_user
as the password is no longer set on the root user.
Otherwise galera cannot sync and cluster properly as access is denied.

Change-Id: I8f03ee7a7a144fa901caf7b6c1ed041e09f2ffc0
2021-03-18 10:46:05 +00:00
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