Change in coreboot[master]: soc/amd/cezanne/chip: add empty SoC device operations

[Raul Rangel (Code Review)]

Attention is currently required from: Jason Glenesk, Felix Held.
Raul Rangel has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/49952 )

Change subject: soc/amd/cezanne/chip: add empty SoC device operations
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Patch Set 2: Code-Review+2