Add DB storage for enabling / disabling arbitrary RAT types.

So far we have only GERAN-A and UTRAN-Iu, but to be future compatible,
implement an arbitrary length list of RAT types: add DB table subscriber_rat.

Backwards compatibility: if there is no entry in subscriber_rat, all RAT types
shall be allowed. As soon as there is an entry, it can either be false to
forbid a RAT or true to still allow a RAT type.

Depends: I93850710ab55a605bf61b95063a69682a2899bb1 (libosmocore)
Change-Id: I3e399ca8a85421f77a9a15e608413d1507722955
8 files changed