Change in coreboot[master]: cbfstool: Add '-p' option for padding

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Change subject: cbfstool: Add '-p' option for padding
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Patch Set 2: Verified+1

Build Successful

https://qa.coreboot.org/job/coreboot-gerrit/64120/ : SUCCESS

https://qa.coreboot.org/job/coreboot-checkpatch/18953/ : SUCCESS