Make BTS type and variant converters shareable

* move value_string definition and corresponding functions for BTS type
  to shared header to make it re-usable by OsmoBTS
* use consistent function naming
* add similar functions for BTS variant
* add enum to be used by OML Attribute Reporting to distinguish between
  type, variant and other info

Change-Id: Ida94725a6fce968443541e3526f48f13758031fd
Related: OS#1614
4 files changed
tree: 5fd7cbeb13149075147ded89eafaf34b79dd4232
  1. contrib/
  2. debian/
  3. openbsc/
  4. .gitignore
  5. .gitreview
  6. .mailmap