tempest: Make _create_router_with_client obey enable_snat=False

Found while working on I4452d61ee6e9d21add3d37ec39301efcbd3bd66d

Closes-Bug: #1699006
Change-Id: Ideb3e57b068dce150e333fde66f7ad488c2b515d
1 file changed
tree: 2877519d96e1b477db6d29e9791e1fe63405735a
  1. neutron/