build: Enable dleyna plugin in distcheck
build: Enable dleyna plugin in distcheck

https://bugzilla.gnome.org/show_bug.cgi?id=733253

jasuarez/grilo-plugins,MikePetullo/grilo-plugins,MathieuDuponchelle/grilo-plugins,MathieuDuponchelle/grilo-plugins,GNOME/grilo-plugins,GNOME/grilo-plugins,grilofw/grilo-plugins,MikePetullo/grilo-plugins,MikePetullo/grilo-plugins,MathieuDuponchelle/grilo-plugins,jasuarez/grilo-plugins,grilofw/grilo-plugins,MathieuDuponchelle/grilo-plugins