Merge tag 'pull-vfio-20250729' of https://github.com/legoater/qemu into staging

vfio queue:

* Fixed regression introduced by the `use-legacy-x86-rom` property
* Fixed regressions on IGD passthrough in legacy mode
* Fixed region mappings of sub-page BARs after CPR
* Removed build of SEV on 32-bit hosts

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# gpg:                using RSA key A0F66548F04895EBFE6B0B6051A343C7CFFBECA1
# gpg: Good signature from "Cédric Le Goater <clg@redhat.com>" [full]
# gpg:                 aka "Cédric Le Goater <clg@kaod.org>" [full]
# Primary key fingerprint: A0F6 6548 F048 95EB FE6B  0B60 51A3 43C7 CFFB ECA1

* tag 'pull-vfio-20250729' of https://github.com/legoater/qemu:
  vfio/igd: Fix VGA regions are not exposed in legacy mode
  vfio/igd: Require host VGA decode for legacy mode
  vfio: fix sub-page bar after cpr
  i386: Build SEV only for 64-bit target
  hw/i386: Fix 'use-legacy-x86-rom' property compatibility

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