Restore support for old-style VDPAU.

It doesn't work exactly the same way, so testing that I did
not introduce regressions is highly welcome.
To test, change in etc/codecs.conf e.g.
dll h264
back to
dll h264_vdpau.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@36445 b3059339-0415-0410-9bf9-f77b7e298cf2
Restore VDPAU codecs using non-hwaccel interface with "old" suffix.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@36446 b3059339-0415-0410-9bf9-f77b7e298cf2