GameSettings: Disable texture cache save states for Mario Tennis and Super Smash Bros (VC)

These create a large number of EFB copies at different offsets,
resulting in considerable save state delays.

Data/Sys/GameSettings/NAL.ini

@@ -14,3 +14,8 @@
 
 [Video_Stereoscopy]
 StereoConvergence = 5000
+
+[Video_Settings]
+# This game creates a large number of EFB copies at different addresses, resulting
+# in a large texture cache which takes considerable time to save.
+SaveTextureCacheToState = False

Data/Sys/GameSettings/NAT.ini

@@ -0,0 +1,18 @@
+# NATJ01, NATP01, NATE01 - Mario Tennis (Virtual Console)
+
+[Core]
+# Values set here will override the main Dolphin settings.
+
+[OnLoad]
+# Add memory patches to be loaded once on boot here.
+
+[OnFrame]
+# Add memory patches to be applied every frame here.
+
+[ActionReplay]
+# Add action replay cheats here.
+
+[Video_Settings]
+# This game creates a large number of EFB copies at different addresses, resulting
+# in a large texture cache which takes considerable time to save.
+SaveTextureCacheToState = False