[sccp] Set the data_len when parsing UDT messages as well

For UDT the msgb_l3len can be safely used but it is better
to set it to data_len for everyone..
1 file changed
tree: b6344eb4155d1fd2d143dd2bdcdc75f826f80790
  1. hlrsync/
  2. linux-kernel/
  3. openbsc/
  4. rrlp-ephemeris/
  5. wireshark/