Disable Han stockades in Survival of the Fittest

The other civs use structures/wallset_palisade, but the Han have a
special one, structures/han/wallset_palisade, which the trigger script
didn't disable.

Fixes #8763

binaries/data/mods/public/maps/random/survivalofthefittest_triggers.js

@@ -71,6 +71,7 @@ var disabledTemplates = (civ) => [
 
 	// Walls
 	"structures/" + civ + "/wallset_stone",
+	"structures/" + civ + "/wallset_palisade",
 	"structures/rome/wallset_siege",
 	"structures/wallset_palisade",