Merge tag 'pull-vfio-20260520' of https://github.com/legoater/qemu into staging

vfio queue:

* Fix IRQ notifier return value in vfio/ap and vfio/ccw
* Fix vfio-user: reject malformed migration capabilities and avoid
  leaking a duplicate device name
* Report overflow in migration size queries
* Fix s390x cpu_models build regression
* Update libvfio-user subproject to fix compilation on newer compilers
* Update update-linux-headers.sh to support typelimits.h and inject
  VIRTIO_RING_NO_LEGACY in virtio_ring.h to fix the Windows build
* Replace abort() with g_assert_not_reached() in the vfio/pci
  interrupt handling path
* Drop superfluous inclusion of hw-error.h from vfio device files

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* tag 'pull-vfio-20260520' of https://github.com/legoater/qemu:
  scripts/update-linux-headers: Add typelimits.h
  vfio/migration: Detect and report overflow in migration size queries
  update-linux-headers: Inject VIRTIO_RING_NO_LEGACY in virtio_ring.h
  vfio/ccw: Return false when IRQ notifier setup fails
  vfio/ap: Return false when IRQ notifier setup fails
  vfio/pci: Replace abort() with g_assert_not_reached()
  hw/remote: update libvfio-user subproject
  vfio-user: reject malformed migration capabilities
  vfio-user: avoid leaking duplicate device name
  hw/vfio: Drop superfluous inclusion of hw-error.h
  target/s390x: restore cpu_models for system builds

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>