[coreboot-gerrit] Change in coreboot[master]: lib/stage_cache: Add save/get raw storage

[build bot (Jenkins) (Code Review)]

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Change subject: lib/stage_cache: Add save/get raw storage
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Patch Set 1: Verified+1

Build Successful

https://qa.coreboot.org/job/coreboot-gerrit/66858/ : SUCCESS

https://qa.coreboot.org/job/coreboot-checkpatch/21451/ : SUCCESS