Merge tag 'pull-ppc-20230918' of https://gitlab.com/danielhb/qemu into staging

ppc patch queue for 2023-09-18:

In this short queue we're making two important changes:

- Nicholas Piggin is now the qemu-ppc maintainer. Cédric Le Goater and
Daniel Barboza will act as backup during Nick's transition to this new
role.

- Support for NVIDIA V100 GPU with NVLink2 is dropped from qemu-ppc.
Linux removed the same support back in 5.13, we're following suit now.

A xive Coverity fix is also included.

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# gpg: Signature made Mon 18 Sep 2023 09:24:44 EDT
# gpg:                using EDDSA key 17EBFF9923D01800AF2838193CD9CA96DE033164
# gpg:                issuer "danielhb413@gmail.com"
# gpg: Good signature from "Daniel Henrique Barboza <danielhb413@gmail.com>" [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: 17EB FF99 23D0 1800 AF28  3819 3CD9 CA96 DE03 3164

* tag 'pull-ppc-20230918' of https://gitlab.com/danielhb/qemu

:
  spapr: Remove support for NVIDIA V100 GPU with NVLink2
  ppc/xive: Fix uint32_t overflow
  MAINTAINERS: Nick Piggin PPC maintainer, other PPC changes

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