metadata-store: Update for last-played type change
metadata-store: Update for last-played type change

https://bugzilla.gnome.org/show_bug.cgi?id=686175

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