IR: Change VCMPGT to use IR::OpSize

FEXCore/Source/Interface/IR/IR.json

@@ -2385,7 +2385,7 @@
         "NumElements": "RegisterSize / ElementSize"
       },
 
-      "FPR = VCMPGT u8:#RegisterSize, u8:#ElementSize, FPR:$Vector1, FPR:$Vector2": {
+      "FPR = VCMPGT OpSize:#RegisterSize, OpSize:#ElementSize, FPR:$Vector1, FPR:$Vector2": {
         "Desc": ["Vector compare signed greater than",
                  "Each element is compared, if the result is true then the resulting element is ~0, else zero"
                 ],