bts: Pass AMR codec info over L1CTL and RSL

Related: SYS#5987
Depends: osmocom-bb.git Change-Id Ia20bc96e39726a919a556c83c8be48cb31af7331
Change-Id: I3db7f6a4b7819b16ada83862f2a5409db4fa21f9
3 files changed