fix bug in MC config generation script

Author: sawenzel

MC/bin/o2dpg_sim_config.py

@@ -71,7 +71,7 @@ def add(cfg, flatconfig):
 
     # MFT tracking settings
     if args.mft_reco_full == True:
-        add({"MFTTracking.forceZeroField" : 0,
-             "MFTTracking.LTFclsRCut" : 0.0100})
+        add(config, {"MFTTracking.forceZeroField" : 0,
+                     "MFTTracking.LTFclsRCut" : 0.0100})
 
     return config