[coreboot-gerrit] [S] Change in coreboot[main]: arch/riscv: add constants for Base Extension

[Maximilian Brune (Code Review)]

Attention is currently required from: Arthur Heymans, Philipp Hug, ron minnich.

Maximilian Brune has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/81286?usp=email )

Change subject: arch/riscv: add constants for Base Extension
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Patch Set 3: Code-Review+2