DB/Gameobject: Fix 3 startup errors

Author: Aokromes

sql/updates/world/4.3.4/2017_05_16_01_world.sql

@@ -0,0 +1,4 @@
+--
+UPDATE `gameobject` SET `spawnMask`=1 WHERE `guid`=47713;
+UPDATE `gameobject` SET `spawnMask`=1 WHERE `guid`=47714;
+UPDATE `gameobject` SET `spawnMask`=1 WHERE `guid`=47785;