FreeSWITCH

Merge pull request #1025 in FS/freeswitch from ~DRAGOS_OANCEA/freeswitch-dragos:configure_enable_amr to master

* commit 'a0284af8ea10f882dc7c3ef3a704f9392158a9a3':
  FS-9670: add autodetection of opencore-amrnb lib and  "--disable-amr" option to configure script