PtpConfigSlave.yaml and PtpConfigSlaveCvl.yaml are identical.    

 Source CRs PtpConfigSlave.yaml (https://github.com/openshift-kni/cnf-features-deploy/blob/release-4.14/ztp/source-crs/PtpConfigSlave.yaml) and PtpConfigSlaveCvl.yaml (https://github.com/openshift-kni/cnf-features-deploy/blob/release-4.15/ztp/source-crs/PtpConfigSlaveCvl.yaml) difference is a comment:
$diff PtpConfigSlave.yaml PtpConfigSlaveCvl.yaml
0a1
> # This configuration is tailored to ColumbiaVille NIC

 Add warning to use ptpConfigSlave instead of ptpConfigSlaveCvl or remove any reference to ptpConfigSlaveCvl    
https://docs.openshift.com/container-platform/4.15/scalability_and_performance/ztp_far_edge/ztp-advanced-policy-config.html#ztp-configuring-ptp-fast-events_ztp-advanced-policy-config

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