added comment for copying hex files

applications/lofar2/designs/lofar2_unb2b_sdp_station/hdllib.cfg

@@ -26,7 +26,7 @@ regression_test_vhdl =
 [modelsim_project_file]
 modelsim_copy_files =
     src/data data
-#### Overwrite bf weights with sim data ensuring all weights are 1.0 by default in simulation.
+#### Overwrite hex files with sim data as hex file formatting is byte addressed in Modelsim instead of word addressed like in Quartus.
     tb/data data    
 
 [quartus_project_file]

applications/lofar2/designs/lofar2_unb2c_sdp_station/hdllib.cfg

@@ -26,7 +26,7 @@ regression_test_vhdl =
 [modelsim_project_file]
 modelsim_copy_files =
     src/data data
-#### Overwrite bf weights with sim data ensuring all weights are 1.0 by default in simulation.
+#### Overwrite hex files with sim data as hex file formatting is byte addressed in Modelsim instead of word addressed like in Quartus.
     tb/data data    
 
 [quartus_project_file]