Change in coreboot[master]: libpayload/x86/malloc: Add methods to allocate low memory

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Change subject: libpayload/x86/malloc: Add methods to allocate low memory
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Patch Set 1: Verified+1

Build Successful

https://qa.coreboot.org/job/coreboot-gerrit/67018/ : SUCCESS

https://qa.coreboot.org/job/coreboot-checkpatch/21591/ : SUCCESS