Write only actual data into the pcap file

The current LAPD control field for indication/disconnect/etc
is wrong and currently we are only interested in the actual
A-Bis data spoken between the BTS and BSC and not on the indication
of the physical line (connection, disconnect, release..)
tree: c4819458d9fcc0c776be78871eba1147daa3269e
  1. tests/
  2. tools/
  3. AUTHORS
  4. configure.in
  5. COPYING
  6. Makefile.am
  7. README