fix issue : tables /calibration/alert/ahdc/gains and /calibration/alert/ahdc/time_over_threshold not found

Author: ftouchte

reconstruction/alert/src/main/java/org/jlab/service/atof/ATOFEngine.java

@@ -138,7 +138,9 @@ public boolean init() {
                 "/calibration/alert/atof/effective_velocity",
                 "/calibration/alert/atof/time_walk",
                 "/calibration/alert/atof/attenuation",
-                "/calibration/alert/atof/time_offsets"
+                "/calibration/alert/atof/time_offsets",
+                "/calibration/alert/ahdc/gains",
+                "/calibration/alert/ahdc/time_over_threshold"
         };
 
         Map<String, Integer> tableMap = new HashMap<>();