Add XML validation for SRC-346-1.
Add XML validation for SRC-346-1.

Assert ID: scap-general-scap-content-xccdf-check-content-ref-name-not-req

OpenSCAP/openscap,OpenSCAP/openscap,OpenSCAP/openscap,OpenSCAP/openscap,OpenSCAP/openscap,OpenSCAP/openscap