Change in coreboot[master]: riscv: add spin lock support

[build bot (Jenkins) (Code Review)]

build bot (Jenkins) has posted comments on this change. ( https://review.coreboot.org/27356 )

Change subject: riscv: add spin lock support
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Patch Set 8:

(1 comment)

https://review.coreboot.org/#/c/27356/8/src/arch/riscv/include/arch/smp/atom...
File src/arch/riscv/include/arch/smp/atomic.h:

https://review.coreboot.org/#/c/27356/8/src/arch/riscv/include/arch/smp/atom...
PS8, Line 45: # define atomic_cas(v, cmp, swp)  __sync_val_compare_and_swap(&((v)->counter), cmp, swp)
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