SIMD&FP load/store with scale > 4 should be undefined (#1522)

* SIMD&FP load/store with scale > 4 should be undefined

* Catch more invalid encodings for FP&SIMD LDR/STR (reg variant)

* Set PTC version to PR number

ARMeilleure/Decoders/OpCodeSimdMemReg.cs

@@ -6,6 +6,13 @@ namespace ARMeilleure.Decoders
         {
             Size |= (opCode >> 21) & 4;
 
+            if (Size > 4)
+            {
+                Instruction = InstDescriptor.Undefined;
+
+                return;
+            }
+
             Extend64 = false;
         }
     }