[coreboot-gerrit] Change in coreboot[master]: soc/amd/stoneyridge: Build `tsc_freq.c` in postcar

[Martin Roth (Code Review)]

Martin Roth has abandoned this change. ( https://review.coreboot.org/c/coreboot/+/22038 )

Change subject: soc/amd/stoneyridge: Build `tsc_freq.c` in postcar
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Abandoned

This patch was not touched in over 18 months.  Anyone who wants to take over work on this patch, please feel free to restore it and do what you'd like. If you create a new patch based on this work, please credit the original author.