upstairs.rs test reconcile_not_ready works for the wrong reasons

[leftwo]

The test in upstairs/src/upstairs.rs reconcile_not_ready() tries to verify connect_region_set() will return false when there are only 2/3 downstairs in the proper state. The call to connect_region_set() actually fails because the upstairs is not in the proper state, so the test is not testing what it thinks it is.

The fix is just to move the upstairs to the proper state:

    let (_rx, done) = BlockOpWaiter::pair();
    up.state = UpstairsState::GoActive(done);

Before the call to connect_region_set()

[leftwo]

There are a few othere tests in this area that might need the same treatment.

[leftwo]

Fix as part of #1608