Merge tag 'firmware-20260203-pull-request' of https://gitlab.com/kraxel/qemu into...

firmware updates for 11.0
- igvm: rework reset handling.
- igvm: add MADT parameter support.
- uefi: variable store fixes.

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# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>" [unknown]
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# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* tag 'firmware-20260203-pull-request' of https://gitlab.com/kraxel/qemu:
  igvm: Fill MADT IGVM parameter field on x86_64
  igvm: Only build stubs if igvm is enabled
  igvm: Pass machine state to IGVM file processing
  igvm: Refactor qigvm_parameter_insert
  igvm: Add common function for finding parameter entries
  igvm: Move structs to internal header
  hw/acpi: Add standalone function to build MADT
  hw/acpi: Make BIOS linker optional
  hw/acpi: Make acpi_checksum() public
  igvm: move igvm file processing to reset callbacks
  igvm: add trace points for igvm file loading and processing
  igvm: move file load to complete callback
  igvm: make igvm-cfg object resettable
  igvm: reorganize headers
  hw/uefi: fix size negotiation
  hw/uefi: skip time check for append-write updates.
  docs/system/igvm.rst: Update external links

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