and move them in their proper places.
Move the BRI registry from layer 2 (duh!) to layer 4, so active cards
(which don't have layer 3 or layer 2 in their driver). Remove all remaining
hard coded controller and driver types. Remove any arbitrary hard coded
limits, at least those that show up in the internal API.
This fixes PR 15950.
remove all (legacy) "i4b_" prefixes outside of sys/netisdn.
Prefix all card specific driver support files with the basename
of the driver bus attachement file.
Renamed here:
i4b_isic_isa.c -> isic_isa.c
i4b_avm_a1.c -> isic_isa_avm_a1.c
i4b_daic_isa.c -> daic_isa.c
i4b_itk_ix1.c -> isic_isa_itk_ix1.c
i4b_tel_s08.c -> isic_isa_tel_s08.c
i4b_tel_s016.c -> isic_isa_tel_s016.c
i4b_tel_s0163.c -> isic_isa_tel_s0163.c
i4b_usr_sti.c -> isic_isa_usr_sti.c
