So the "oml ..." commands in the config file you posted won't work for the nanoBTS.
Well it should at least know it is dealing with the nanobts, which is not the case. In function bootstrap_network() of bsc_hack.c the function vty_read_config_file() is called, and that's it. So bsc_hack.c does nothing with the config file. Furthermore, I can't seem to find where the bts->type is filled. So my conclusion is this part is not finished yet.