优化国标级联的目录创建以及推送规则，优化接收目录规则，更加规范

src/main/java/com/genersoft/iot/vmp/vmanager/gb28181/platform/PlatformController.java

@@ -403,8 +403,12 @@ public class PlatformController {
         if (platform == null) {
             throw new ControllerException(ErrorCode.ERROR100.getCode(), "平台未找到");
         }
-        if (platformId.equals(parentId)) {
-            parentId = platform.getDeviceGBId();
+//        if (platformId.equals(parentId)) {
+//            parentId = platform.getDeviceGBId();
+//        }
+
+        if (platformId.equals(platform.getDeviceGBId())) {
+            parentId = null;
         }
 
         return storager.getChildrenCatalogByPlatform(platformId, parentId);