Fix client in TroveActions
Fix client in TroveActions

Fixes the TroveActions to connect to the Trove v1 client.  Also
provides the required user/pass for the fake_client.

Change-Id: I03503007a5bd71f3d58c8ad09b0eb5ffd3f9050a
Closes-bug: 1585703

StackStorm/mistral,openstack/mistral,StackStorm/mistral,openstack/mistral