[Feature][DATA][T8TSK-211]support the handle value of setup_data_call set to a valid value after timeout 1

Change-Id: I038bc5e49ad1ac855c53bdc0eefe8eb46b1a4b22
diff --git a/lib/liblynq-data/lynq_data.cpp b/lib/liblynq-data/lynq_data.cpp
index 7971254..10795bf 100755
--- a/lib/liblynq-data/lynq_data.cpp
+++ b/lib/liblynq-data/lynq_data.cpp
@@ -171,7 +171,7 @@
 {
     int ret = 0;
     ret = getUnusedElement();
-    if(ret)
+    if(ret >= 0)
     {
         memcpy(lynq_apn_table[ret].apnType,apnType,strlen(apnType)+1);
         lynq_apn_table[ret].hasUsed = 1;