bsc/osmo-bsc.cfg: explicitly set AMR link adaptation parameters

The default AMR link adaptation parameters have been changed in
the recent osmo-bsc, so set the old expected default explicitly.

Change-Id: I320d91a35bc50bdfe87c0384035a10b8672ef23c
Related: osmo-bsc.git Ic5f8d55d250976d8d4c9cae2d89480fd52326717
Related: SYS#5917
1 file changed