Hi Christoph, Keith, Nitesh,

v4 is a re-spin of v3 with no functional changes.  Fixes the garbled
mail format on v3 and adds Christoph's Reviewed-by tags on both patches
(v3 already had Nitesh's Reviewed-by).

## Test plan
- Build: make M=drivers/nvme -j12 (linux-next, verified)

- QEMU (fdp-lab, tested as one patch before this split): linux-next 7.1-rc4,
  QEMU 8.2 nvme-subsys,fdp=on; fdpcidx=1 / NUMFDPC 0 - unfixed: invalid
  descriptor list; fixed: FDP index:1 out of range:1.  v4 is tag/format
  only; no re-test.

Thanks,
liuxixin