nvme-pci: disable namespace identifiers for the MAXIO MAP1001

The MAXIO MAP1001 controllers reports completely bogus Namespace
identifiers that even change after suspend cycles.  Disable using
the Identifiers entirely.

Reported-by: Arman Hajishafieha <arman.hajishafieha@hotmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Tested-by: Arman Hajishafieha <arman.hajishafieha@hotmail.com>