DB/Misc: Couple of fixes for Stormpeaks

1) Script event with Zeev Fizzlespark when Agnetta Tyrsdottar Dies
2) Respawn spawns of http://www.wowhead.com/object=191844/enchanted-earth and http://www.wowhead.com/object=191845/enchanted-earth as previousy tc only had 5 spawns between these 2 gos.