load-fragment: config_parse_emergency_action() doesn't ever get a Manager pointer...

load-fragment: config_parse_emergency_action() doesn't ever get a Manager pointer passed in

In 'data' we get the location passed in we write stuff, and that's not
the Manager object.

And we neither get the Manager passed in via 'userdata', because at the
time we parse the emergency action for the manager the Manager is not
actually allocated yet.

hence, let's fix this differently, and pass in the user/system mode
descriptor via the 'ltype' argument.

Fixes: #25933