Change integer based conf parameter from string

targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band13.tm1.50PRB.emtc.conf

@@ -13,7 +13,7 @@ eNBs =
     eNB_name  =  "eNB_Eurecom_LTEBox";
 
     // Tracking area code, 0x0000 and 0xfffe are reserved values
-    tracking_area_code  =  "1";
+    tracking_area_code  =  1;
 
     plmn_list = ( { mcc = 208; mnc = 93; mnc_length = 2;} );