[XS] Change in coreboot[main]: mb/emulation/spike-riscv: Define default DRAM_SIZE to avoid crash

[Maximilian Brune (Code Review)]

Attention is currently required from: Joel Bueno, Philipp Hug, ron minnich.

Maximilian Brune has posted comments on this change by Joel Bueno. ( https://review.coreboot.org/c/coreboot/+/85800?usp=email )

Change subject: mb/emulation/spike-riscv: Define default DRAM_SIZE to avoid crash
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Patch Set 3:

(1 comment)

Commit Message:

https://review.coreboot.org/c/coreboot/+/85800/comment/b49d93fe_ee70fad1?usp... :
PS3, Line 16: his does not happen on qemu because, for that target, we parse the
            : FDT instead of manually probing memory.
> Yes, we have drafted a patch for it; would it be better for the coreboot team if we created a separa […]

Its your choice, but you might as well re-use this patch.