Does anyone know if there is any PCI compliance for System Center 2012 Operations Manager are System Center 2012 Configuration Manager?

have you looked at Security Compliance Manager? http://technet.microsoft.com/en-us/library/cc677002.aspx

I can't recall if there are specific PCI DSS baselines in SCM.

There are dozens of configuration packs available  to choose from:
http://search.microsoft.com/en-us/DownloadResults.aspx?q=Configuration+Pack+for+Configuration+Manager