Merge tag 'nvme-next-pull-request' of git://git.infradead.org/qemu-nvme into staging

Merge tag 'nvme-next-pull-request' of git://git.infradead.org/qemu-nvme into staging

hw/nvme fixes

Some fixes for hw/nvme ioeventfd support.

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* tag 'nvme-next-pull-request' of git://git.infradead.org/qemu-nvme:
  hw/nvme: do not enable ioeventfd by default
  hw/nvme: unregister the event notifier handler on the main loop
  hw/nvme: skip queue processing if notifier is cleared

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>