DB/Creature: Fix mount condition for Stabled Argent Warhorse

sql/updates/world/3.3.5/2018_01_06_01_world.sql

@@ -0,0 +1,3 @@
+-- Stabled Argent Warhorse
+DELETE FROM `conditions` WHERE `SourceGroup`=33870 AND `SourceTypeOrReferenceId`=18 AND SourceEntry=63663; 
+INSERT INTO `conditions` VALUES (18,33870,63663,0,0,9,0,13664,0,0,0,0,0,'','Spellclick requires quest 13664 active');