tmdb: Set original-title again
tmdb: Set original-title again

This got dropped by accident in commit
fcfd3c496c1932d3ecd44d9bd81d070b151a3598.

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