Set lwIP version to 2.0.1 RELEASE

src/include/lwip/init.h

@@ -58,7 +58,7 @@ extern "C" {
 /** For release candidates, this is set to 1..254
   * For official releases, this is set to 255 (LWIP_RC_RELEASE)
   * For development versions (Git), this is set to 0 (LWIP_RC_DEVELOPMENT) */
-#define LWIP_VERSION_RC         LWIP_RC_DEVELOPMENT
+#define LWIP_VERSION_RC         LWIP_RC_RELEASE
 
 /** LWIP_VERSION_RC is set to LWIP_RC_RELEASE for official releases */
 #define LWIP_RC_RELEASE         255