update to 2.0.5

inc/at_device.h

@@ -26,8 +26,8 @@ extern "C" {
 #include <netdev.h>
 #endif /* RT_USING_NETDEV */
 
-#define AT_DEVICE_SW_VERSION           "2.0.4"
-#define AT_DEVICE_SW_VERSION_NUM       0x20004
+#define AT_DEVICE_SW_VERSION           "2.0.5"
+#define AT_DEVICE_SW_VERSION_NUM       0x20005
 
 /* AT device class ID */
 #define AT_DEVICE_CLASS_ESP8266        0x01U