This can be used to replace the per-role bootstrap_nodeid_ip,
and the redis-base template is updated to use the new hiera
key.
The old bootstrap_nodeid_ip appears to only be used for redis,
so the old key is removed, with an upgrade release note added
should any out-of-tree services reference this value.
Partial-Bug: #1792613
Change-Id: I830d5b9bae3e9d65c2c393e3dcdf70bffdb1ac7b