Change in coreboot[master]: soc/amd/stoneyridge: Refactor northbridge resource allocator

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Change subject: soc/amd/stoneyridge: Refactor northbridge resource allocator
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Patch Set 6: Verified+1

Build Successful

https://qa.coreboot.org/job/coreboot-gerrit/67903/ : SUCCESS

https://qa.coreboot.org/job/coreboot-checkpatch/22389/ : SUCCESS