[coreboot-gerrit] [XS] Change in coreboot[master]: soc/amd/block/ivrs: Add NULL check for IVRS

[Lean Sheng Tan (Code Review)]

Attention is currently required from: Arthur Heymans, Felix Held, Felix Singer, Fred Reitberger, Jason Glenesk, Martin L Roth, Matt DeVillier, Naresh Solanki, Raul Rangel.

Lean Sheng Tan has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/75506?usp=email )

Change subject: soc/amd/block/ivrs: Add NULL check for IVRS
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Patch Set 4: Code-Review+2