[MPlayer-dev-eng] patch for cpudetect and amigaos4

[Alan Curry]

Andrea =?iso-8859-1?Q?Palmat=E8?= writes the following:
>
>hello,
>
>attached there is a patch (that is same of=20
>libavcodec) to enable altivec detection with AmigaOS4.
>Can you test it?

Of course I can't test it since I don't have Amiga, but it looks clean
enough after getting rid of the return 0 which doesn't belong because:
  1. this function returns void
  2. it's too soon to return; the "AltiVec found"/"AltiVec not found" message
  hasn't been printed yet.