优化demo代码解决NW部分参数处理错误

Change-Id: I4db3c717b535160ff7dc12bc9723d0d03ef303e8
diff --git a/mbtk/liblynq_lib/src/lynq_sms.c b/mbtk/liblynq_lib/src/lynq_sms.c
index 519d21a..2c56e35 100755
--- a/mbtk/liblynq_lib/src/lynq_sms.c
+++ b/mbtk/liblynq_lib/src/lynq_sms.c
@@ -103,6 +103,8 @@
         return -1;
     }
 
+    mbtk_sms_state_change_cb_reg(sms_info_handle, NULL);
+
     if(sms_info_handle)
     {
         mbtk_info_handle_free(&sms_info_handle);