Change in coreboot[master]: util/abuild: Start testcase on kconfig failure

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Change subject: util/abuild: Start testcase on kconfig failure
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Patch Set 1: Verified-1

Build Unstable

https://qa.coreboot.org/job/coreboot-gerrit/54233/ : UNSTABLE

https://qa.coreboot.org/job/coreboot-checkpatch/9966/ : SUCCESS