nvme: reject namespaces formatted with metadata

[seuros]

Summary

The active LBA format's MS field was never examined. I/O to a
metadata-formatted namespace carries neither interleaved metadata
nor MPTR, so every command is malformed, yet the namespace attaches
as a disk with the wrong sector size.

Test Plan

Every change in the stack was test against real hardware , the spec is https://nvmexpress.org/specifications/

[imp]

We "should" support this. However, we do not, so this is the right thing to do.