There are API parameters "admin_password" and "admin_pass" on some APIs:
* AdminPasswordController: admin_password
* EvacuateController : admin_password
* RescueController : admin_pass
* ServersController : admin_pass
These parameters mean the same thing, it is the admin password of a vm
instance. They should be the same parameter name because of the meaning.
DocImpact
Partially implements bp nova-v3-api
Change-Id: I452672e064d0dc4a1d5700bb96c01de8087f33d8