[lwip] add lwip latest version (#5629)

* [lwip] 增加LWIP上游同步版本

* move pkgs to package repo

* add RT_USING_LWIP_LOCAL_VERSION to let users to decide whether can use upstream version of LwIP

* Update Kconfig

components/net/lwip/Kconfig

@@ -5,6 +5,13 @@ menuconfig RT_USING_LWIP
     default n
 
 if RT_USING_LWIP
+    config RT_USING_LWIP_LOCAL_VERSION
+        bool "Use LwIP local version only"
+        default n
+        help
+            If don't select this option, both local version and upstream
+            version can be selected. If select this option, only local version
+            can be selected.
     choice
         prompt "lwIP version"
         default RT_USING_LWIP203
@@ -20,10 +27,17 @@ if RT_USING_LWIP
         config RT_USING_LWIP212
             bool "lwIP v2.1.2"
 
+        # online version
+        if !RT_USING_LWIP_LOCAL_VERSION
+            config RT_USING_LWIP_LATEST
+                bool "lwIP latest"
+                select PKG_USING_LWIP
+        endif
     endchoice
 
     config RT_USING_LWIP_VER_NUM
         hex
+        default 0x99999    if RT_USING_LWIP_LATEST
         default 0x20102    if RT_USING_LWIP212
         default 0x20003    if RT_USING_LWIP203
         default 0x10401    if RT_USING_LWIP141