DC_PrepareLBNEntries should prefer DataConfigurationResult entries vs. re-getting the same data from the GUI

[MichaelHuth]

DC_PrepareLBNEntries retrieves data for LNB entries from the GUI that actually have entries in DataConfigurationResult.

Here the filled structure should be preferred because

• we write only data in the LNB that is actually evaluated by DC

• no re-getting of data from the GUI in the same module

• DC_PrepareLBNEntries should be like one of the "inverse" functions in the concept of the upcoming feature to recreate the DataConfigurationResult structure from the LNB.

• DC_CalculateChannelColumnNo should also be cleaned up

• Check usage of s.indexingLocked, seems not to be filled in DC and not read. It is only read from GUI and written to LNB. Should go through s aswell then?