merge files: absorb osmo_bsc_vty.c into bsc_vty.c

For historical reasons we had bsc_vty.c and osmo_bsc_vty.c. Ever since the
osmo-nitb split, there is no reason to keep these files separate. Merge
osmo_bsc_vty.c into bsc_vty.c (because osmo_bsc_vty.c is smaller).

I noticed this particularly because adding the NRI configuration required
adding things like #define NRI_STR in two separate files: once for the
'network' level vty, and once for the 'msc' level.

Change-Id: I7fd2ee631b22e38f3d96d8159dc1deaaca6a7013
4 files changed