[nat/bsc] Fix memory leak of IPA messages...

* The read_msg method is allocating the msgb and we will
  need to free it once we are done with it.
1 file changed
tree: 2d5e07ba2f765492a01d898a3409f69a9b095d8b
  1. hlrsync/
  2. linux-kernel/
  3. openbsc/
  4. wireshark/