Disabling AFP TDC service messages
Adding a check to the AFP_ByteStream2RawCnv
for the right bits of an actual time measurement. Other bit patterns correspond to debug info or errors and they should not be processed. Thus, they are ignored.
Output of the time measurements is unchanged.
Following description: https://twiki.cern.ch/twiki/bin/view/Atlas/AFPHPTDC?rev=22#Data_Encoding
tagging @korcyl
Edited by Petr Balek