Change in coreboot[master]: mb/emulation/qemu-q35,qemu-i440fx: Add x86_64 support

[Patrick Rudolph (Code Review)]

Patrick Rudolph has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/29667 )

Change subject: mb/emulation/qemu-q35,qemu-i440fx: Add x86_64 support
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Patch Set 32:

(1 comment)

https://review.coreboot.org/c/coreboot/+/29667/32/src/arch/x86/Kconfig 
File src/arch/x86/Kconfig:

https://review.coreboot.org/c/coreboot/+/29667/32/src/arch/x86/Kconfig@55 
PS32, Line 55: PAGING_IN_CACHE_AS_RAM
> This symbol is used to set up linker symbols to set up PD in car. […]

That's some leftover of the earliest patches. It's not required any more and I'll remove it. Storing page tables in cbmem is possible, but not implemented for this PoC as coreboot doesn't benefit from accessing > 4G memory (on x86) yet.
2) seems a good idea.