- fixed compiler error: convert faild

src/iec61850/inc/iec61850_model.h

@@ -223,7 +223,6 @@ struct sDataAttribute {
     ModelNode* firstChild;
 
     int elementCount; /* > 0 if this is an array */
-    int index;
 
     FunctionalConstraint fc;
     DataAttributeType type;
@@ -233,6 +232,8 @@ struct sDataAttribute {
     MmsValue* mmsValue;
 
     uint32_t sAddr;
+
+    int index;
 };
 
 typedef struct sDataSetEntry {