GameINI: Enable Single Core for Kung Fu Panda and Shrek Forever After

These games (both are made with the Lux Engine) randomly freeze with Dual Core.

Data/Sys/GameSettings/RKP.ini

@@ -0,0 +1,4 @@
+# RKPJ52, RKPE52, RKPY52, RKPK52, RKPV52, RKPP52, RKPX52 - Kung Fu Panda
+
+[Core]
+CPUThread = False

Data/Sys/GameSettings/SK4.ini

@@ -0,0 +1,4 @@
+# SK4P52, SK4E52, SK4I52 - Shrek Forever After
+
+[Core]
+CPUThread = False