nvme-pci: Re-order nvme_pci_free_ctrl

Destroy the resources in the same order like in nvme_probe error flow to
improve code readability.

Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>