The reason for this is quite simple: We want to make sure anyone
running a customized version of OpenBSC to operate a network will
have to release all custom modifiations to the source code.
When switching the RF off we will always go through the grace
period, add a direct off mode to switch it off directly. Make
the query return a 'g' if we are in the process of switching
things over.
Keep a back pointer to the rf struct inside the connection,
resolve the network through the back pointer. Also assume
that the RF is on. In case we start with RF locked, the policy
is on but we will not see any MS talking to us.