FreeSWITCH

Merge pull request #1075 in FS/freeswitch from ~DRAGOS_OANCEA/freeswitch-dragos:conf_opus_adj_bitrate to master

* commit '366ddc0c10112b140916bd42f87fe2b17e50e6a0':
  FS-9770: xml config: add new config setting 'adjust-bitrate' for mod_opus