[S] Change in coreboot[main]: mb/emulation/riscv: Limit DRAM size

[Martin L Roth (Code Review)]

Martin L Roth has abandoned this change. ( https://review.coreboot.org/c/coreboot/+/68843?usp=email )

Change subject: mb/emulation/riscv: Limit DRAM size
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Abandoned

Talking to Ron, this is no longer needed.