[coreboot-gerrit] Change in coreboot[master]: soc/amd: factor out _SOC_DEV macro into common block

[Jeremy Soller (Code Review)]

Jeremy Soller has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/47515 )

Change subject: soc/amd: factor out _SOC_DEV macro into common block
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Patch Set 1: Code-Review+1

Pretty simple and clear, looks good to me