Fix MS TO measurement representation

* set proper flag when saving MS Timing Offset
* use gsm_subscriber's IMSI or lchan's name if bsc_subscriber is unknown
* add comments with spec reference
* store/display MS Timing Offset instead of raw Timing Offset field from
  RSL
* Compute MS Timing Offset [-63; 192] from Timing Offset field [0; 255],
  adjust structure gsm_meas_rep with proper type to store it

Change-Id: I7e003d23a6edb714c5f17688fd6a8edac131161d
Related: OS#1574
6 files changed
tree: 6fa8043321e25feed886fcd495bd025489fec2f1
  1. contrib/
  2. debian/
  3. openbsc/
  4. .gitignore
  5. .gitreview
  6. .mailmap