Fix v3 test_list_servers_negative

1) for alt_manager was used v2 servers client, instead v3,
as for common manager.
2) due to bug #1252971, it should be fixed as for v2 Test Suite.
See merged commit:
https://github.com/openstack/tempest/commit/892d43567bebc31283b56f9e22d554ee98b60e06

Change-Id: Ib3af06a46672f1e331f5c3bcd6e70cf006ec011b
Closes-Bug: #1266105
Merge "Fix v3 test_list_servers_negative"