[XL] Change in coreboot[main]: mb/emulation: Add SIMICS QSP support

[Lean Sheng Tan (Code Review)]

Attention is currently required from: Angel Pons, Arthur Heymans, Benjamin Doron, Christian Walter, Leon Groß, Patrick Rudolph, Paul Menzel.

Lean Sheng Tan has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/77905?usp=email )

Change subject: mb/emulation: Add SIMICS QSP support
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Patch Set 11:

(1 comment)

File src/mainboard/emulation/simics-qsp/memmap.c:

https://review.coreboot.org/c/coreboot/+/77905/comment/bb5303c5_de071cea :
PS4, Line 97: postcar_frame_add_mtrr(pcf, top_of_ram - 8*MiB, 8*MiB, MTRR_TYPE_WRBACK);
            : 	postcar_frame_add_mtrr(pcf, top_of_ram, 8*MiB, MTRR_TYPE_WRBACK);
> The simulator itself implements MTRR capabilities, why wouldn't we set them up properly? I think thi […]

Simulator is different with emulator. Simics actually simulates the RTL design.