Change in coreboot[master]: northbridge/amd/stoney: Add FT4 package

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Change subject: northbridge/amd/stoney: Add FT4 package
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Patch Set 4: Verified+1

Build Successful

https://qa.coreboot.org/job/coreboot-gerrit/50706/ : SUCCESS

https://qa.coreboot.org/job/coreboot-checkpatch/6683/ : SUCCESS