Merge tag 'common_phys_vec_via_vfio' into HEAD

 * Reuse common phys_vec, phase out dma_buf_phys_vec

Signed-off-by: Alex Williamson <alex@shazbot.org>
* tag 'common_phys_vec_via_vfio':
  types: reuse common phys_vec type instead of DMABUF open‑coded variant
  types: move phys_vec definition to common header
  nvme-pci: Use size_t for length fields to handle larger sizes