[mythtv] dvb-s eit 21407

[Martin Bene]

Talking to myself again.. 

> also tried manually updateing 
> the dtv_multiplex table with content from before the update 
> and see if that changes eit behaviour.

This did the trick; after update of sistandard and networkid columns (and backend restart) I'm getting EIT updates again; not finished yet but program guide is filling up again with data for the next 7 days. Thanks for the hint!

Bye, Martin