The package needs to have a recipe available that when built with bitbake to offer no errors and the proper configuration.
There is a patch available but it does not seem merged: http://permalink.gmane.org/gmane.comp.handhelds.openembedded.core/59144
Waiting for above mentioned patch to be merged upstream.
Patch available upstream: http://cgit.openembedded.org/cgit.cgi/meta-openembedded/tree/meta-networking/recipes-protocols/openl2tp/openl2tp_1.8.bb?h=master
Recipe`s build finished correctly and was integrated in the image.
Verified by building with no additional erros.