can't run nvme-mp blktests

[Christoph Hellwig]

On Wed, Apr 13, 2022 at 11:12:26AM -0700, Luis Chamberlain wrote:
> OK so CONFIG_NVME_MULTIPATH will be nuked, but the module parameter
> will remain, and if the module parameter is used with multipath=N you'll
> end up with a single namespace once the phase out of
> CONFIG_NVME_MULTIPATH is complete.

The other way around.  The plan is that CONFIG_NVME_MULTIPATH will
stay around forever - for deeply embedded devices that only have
a soldered on or sd-card nvme device with a single path there is no
need to carry the multipathing code around.  But the code to support
multiple controllers in a subsystem without CONFIG_NVME_MULTIPATH
will go away.