Change in coreboot[master]: Kconfig: Add config to use a fmap which has a ucode stage area

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Change subject: Kconfig: Add config to use a fmap which has a ucode stage area
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Patch Set 3: Verified+1

Build Successful

https://qa.coreboot.org/job/coreboot-gerrit/71049/ : SUCCESS

https://qa.coreboot.org/job/coreboot-checkpatch/25225/ : SUCCESS