Change in coreboot[master]: commonlib/storage: Make pci sdhci code compile in romstage

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Change subject: commonlib/storage: Make pci sdhci code compile in romstage
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Patch Set 3:

Build Successful

https://qa.coreboot.org/job/coreboot-checkpatch/23727/ : SUCCESS

https://qa.coreboot.org/job/coreboot-gerrit/69406/ : SUCCESS