Merge pull request #28 from Lawlieta/master

【修改】适配 AT 组件源码函数改动

at_socket_ec20.c

@@ -1417,7 +1417,7 @@ static int at_socket_device_init(void)
     ec20_net_init();
 
     /* set EC20 AT Socket options */
-    at_scoket_device_register(&ec20_socket_ops);
+    at_socket_device_register(&ec20_socket_ops);
 
     return 0;
 }

at_socket_esp8266.c

@@ -711,7 +711,7 @@ static int at_socket_device_init(void)
     esp8266_net_init();
 
     /* set esp8266 AT Socket options */
-    at_scoket_device_register(&esp8266_socket_ops);
+    at_socket_device_register(&esp8266_socket_ops);
 
     return RT_EOK;
 }

at_socket_m26.c

@@ -925,7 +925,7 @@ static int at_socket_device_init(void)
     m26_net_init();
 
     /* set m26 AT Socket options */
-    at_scoket_device_register(&m26_socket_ops);
+    at_socket_device_register(&m26_socket_ops);
 
     return RT_EOK;
 }