[coreboot-gerrit] Change in coreboot[master]: add __must_check to */compiler.h

[build bot (Jenkins) (Code Review)]

build bot (Jenkins) has posted comments on this change. ( https://review.coreboot.org/20881 )

Change subject: add __must_check to */compiler.h
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Patch Set 1: Verified+1

Build Successful

https://qa.coreboot.org/job/coreboot-gerrit/58219/ : SUCCESS

https://qa.coreboot.org/job/coreboot-checkpatch/13639/ : SUCCESS