nvme-pci: Fix timeouts in connecting state

We need to halt the controller immediately if we haven't completed
initialization as indicated by the new "connecting" state.

Fixes: ad70062c

 ("nvme-pci: introduce RECONNECTING state to mark initializing procedure")
Signed-off-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>