Merge tag 'mem-2024-07-10' of https://github.com/davidhildenbrand/qemu into staging

Merge tag 'mem-2024-07-10' of https://github.com/davidhildenbrand/qemu into staging

Hi,

"Host Memory Backends" and "Memory devices" queue ("mem"):
- Only one error message improvement that causes less confusion when
  triggered from libvirt

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# gpg: Signature made Wed 10 Jul 2024 10:37:51 AM PDT
# gpg:                using RSA key 1BD9CAAD735C4C3A460DFCCA4DDE10F700FF835A
# gpg:                issuer "david@redhat.com"
# gpg: Good signature from "David Hildenbrand <david@redhat.com>" [undefined]
# gpg:                 aka "David Hildenbrand <davidhildenbrand@gmail.com>" [full]
# gpg:                 aka "David Hildenbrand <hildenbr@in.tum.de>" [unknown]
# gpg: WARNING: The key's User ID is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 1BD9 CAAD 735C 4C3A 460D  FCCA 4DDE 10F7 00FF 835A

* tag 'mem-2024-07-10' of https://github.com/davidhildenbrand/qemu:
  virtio-mem: improve error message when unplug of device fails due to plugged memory

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