Change in coreboot[master]: cbfstool: add an option for creating a topswap bootblock

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Change subject: cbfstool: add an option for creating a topswap bootblock
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Patch Set 9: Verified+1

Build Successful

https://qa.coreboot.org/job/coreboot-gerrit/73739/ : SUCCESS

https://qa.coreboot.org/job/coreboot-checkpatch/27858/ : SUCCESS