Fix Baten Kaitos Shop Crashes

Baten Kaitos will crash with certain items in your inventory if you
scroll over them in the shop screen.  SyncGPU does not fix the issue,
but single core does.

Data/Sys/GameSettings/GKB.ini

@@ -1,7 +1,10 @@
 # GKBEAF, GKBJAF, GKBPAF - Baten Kaitos Eternal Wings and the Lost Ocean
 
 [Core]
-# Values set here will override the main Dolphin settings.
+# This game will crash when shopping with certain items in inventory
+# unless Single Core is enabled.
+CPUThread = False
+
 
 [OnLoad]
 # Add memory patches to be loaded once on boot here.