return int64 from fx_getCurrentTime

ttcn/Common/LibItsCommon_Functions.ttcn

@@ -222,7 +222,7 @@ module LibItsCommon_Functions {
          * @desc    This external function gets the current time
          * @return  Timestamp - current time since 01/01/2014 in milliseconds
          */
-        external function fx_getCurrentTime() return TimestampIts;
+        external function fx_getCurrentTime() return UInt64;
         
         /**
          * @desc    Gets the tenths of a second in the current or next hour in units of 1/10th second from UTC time