Change in coreboot[master]: arch/riscv: Pass cbmem_top to ramstage via calling argument

[Arthur Heymans (Code Review)]

Arthur Heymans has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/36558 )

Change subject: arch/riscv: Pass cbmem_top to ramstage via calling argument
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Patch Set 3:
> Patch Set 3:
>
> Have a look at Stage handoff protocol here:
> https://doc.coreboot.org/arch/riscv/index.html
>
> a1 contains a pointer to fdt and not to cbmem_top.

That is not the case anymore when calling ramstage, because cbmem_top is put in the program argument. See run_ramstage() in lib/prog_loaders.c. Besides, I'm sure that the stage_entry() function does not properly contain the calling argument that supposedly contains a pointer to the fdt (or cbmem_top in this case) in ramstage.