[MPlayer-dev-eng] internal libfaad2 forked copy

[Diego Biurrun]

Janne just committed LATM support to FFmpeg.  AFAIK that fixes the
main shortcoming of FFmpeg's AAC decoder compared to libfaad2.
IOW, the time for us to remove the internal libfaad2 copy from
MPlayer appears to have come.

libfaad2 is still faster than ffaac in fixed-point mode on my K6-III,
which has a slow FPU, but I'm not aware of any other major issues.

Anything I'm missing?  Otherwise libfaad2 shall go the way of the dodo.

Diego