respect the link_id, not only the SAPI from SMS code

SMS related messages are all sent over SAPI=3.  But in addition
to that, we also need to send it over the correct link identifier,
i.e. SACCH or main signalling channel
6 files changed
tree: cd61b8be347221e72bb74e1137f80e9548818270
  1. hlrsync/
  2. linux-kernel/
  3. openbsc/
  4. wireshark/