libmsc: use GSM411_RP_CAUSE_MO_NUM_UNASSIGNED as return value

Instead of hardcoded value of 1 plus comment of the right hand side of
the statement.

Change-Id: I865bdbd6da17a0389044a8e749deeeebcb9cae06
2 files changed
tree: 40617177d8e42355c9a5621a5544c248b18b4537
  1. contrib/
  2. debian/
  3. openbsc/
  4. .gitignore
  5. .gitreview
  6. .mailmap