Merge tag 'net-pull-request' of https://github.com/jasowang/qemu into staging

Merge tag 'net-pull-request' of https://github.com/jasowang/qemu into staging

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# gpg: Signature made Tue 17 May 2022 01:50:04 AM PDT
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* tag 'net-pull-request' of https://github.com/jasowang/qemu:
  tulip: Assign default MAC address if not specified
  net/vmnet: update hmp-commands.hx
  net/vmnet: update qemu-options.hx
  net/vmnet: implement bridged mode (vmnet-bridged)
  net/vmnet: implement host mode (vmnet-host)
  net/vmnet: implement shared mode (vmnet-shared)
  net/vmnet: add vmnet backends to qapi/net
  net/vmnet: add vmnet dependency and customizable option

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