Fix aodh service config option name

aodh service config option name registered in
Tempest's service_available group is 'aodh_plugin' which
is not consistent with all other service_available config
option.

After below patch Devstack will automatically set all service
availability on tempest side. For that all services name should
going to be registered on Tempest must be consistent with
service name registered on devstack side.
- I02be777bf93143d946ccbb8e9eff637bfd1928d4

This patch rename the config option name to 'aodh'
and keep the old name with deprecation warning.
Closes-Bug: #1743688

Change-Id: I7739e0b672a7211a1d643543fdc79031affa0a0b
1 file changed