add doc and update readme

Signed-off-by: Nester.zhou <ester.zhou@huawei.com>

en/device-dev/porting/Readme-EN.md

@@ -62,3 +62,5 @@ The download steps for other resources are the same as those in the mainline ver
 
 - [Mini System SoC Porting Cases](porting-minichip-cases.md)
   - [Mini-System Devices with Screens — Bestechnic SoC Porting Case](porting-bes2600w-on-minisystem-display-demo.md)
+  - [Combo Solution – ASR Chip Porting Case](porting-asr582x-combo-demo.md)
+

en/device-dev/porting/porting-minichip-cases.md

 # Mini System SoC Porting Cases
 
 -   **[Mini-System Devices with Screens — Bestechnic SoC Porting Case](porting-bes2600w-on-minisystem-display-demo.md)**
+-   **[Combo Solution – ASR Chip Porting Case](porting-asr582x-combo-demo.md)**

en/device-dev/porting/porting.md

 # Porting<a name="EN-US_TOPIC_0000001157479393"></a>
 
--   **[Third-Party Library Porting Guide](porting-thirdparty.md)**  
-
 -   **[Mini System SoC Porting Guide](porting-minichip.md)**  
-
 -   **[Small System SoC Porting Guide](porting-smallchip.md)**  
-
--   **[Standard System Porting Guide](standard-system-porting-guide.md)**  
+-   **[Standard System Porting Guide](standard-system-porting-guide.md)**
+-   **[Third-Party Library Porting Guide for Mini and Small Systems](porting-thirdparty.md)**