src/mainboard/emulation/qemu-i440fx: Fix struct packing
On x86_64 the struct isn't packed, causing the fw_cfg parser to return
invalid memory entries (possible others as well) through fw_cfg.
Fix that by packing all structs.
Change-Id: Id1bab99f06be99674efe219dda443fb7d44be560
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59872
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>