From Fastsurfer's github, that parcellation is not part of Freesurfer.
You can create the aparc+aseg.mgz (Desikian atlas) the same way as the a2009s (either running FastSurfer with --fsaparc or using the FreeSurfer commands):
cd $SUJECTS_DIR/<subjid>/mri
mris_ca_label -l ../label/?h.cortex.label -aseg aseg.presurf.mgz <subjid> ?h ?h.sphere.reg $FREESURFER_HOME/average/?h.curvature.buckner40.filled.desikan_killiany.2007-06-20.gcs ../label/?h.aparc.annot
mri_aparc2aseg --s <subjid> --volmask --aseg aseg.presurf.hypos