[coreboot-gerrit] [XS] Change in coreboot[master]: arch/riscv: Add clang as supported architecture

[Felix Singer (Code Review)]

Attention is currently required from: Angel Pons, Arthur Heymans, Philipp Hug, Ron Minnich.

Felix Singer has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/74571?usp=email )

Change subject: arch/riscv: Add clang as supported architecture
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Patch Set 6: Code-Review+2