[coreboot-gerrit] Change in coreboot[master]: soc/intel/common: Add romstage common stage file

[Bernardo Perez Priego (Code Review)]

Bernardo Perez Priego has removed Patrick Rudolph from this change.  ( https://review.coreboot.org/c/coreboot/+/37628 )

Change subject: soc/intel/common: Add romstage common stage file
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Removed reviewer Patrick Rudolph.