[FFmpeg-devel] Rename [vdpau|xvmc]video.c --> [vdpau|xvmc].c

[Diego Biurrun]

Let's fix some of the structure of the hardware acceleration APIs.
One thing are the file names, which are not very useful.  I propose

vdpauvideo.c --> vdpau.c
xvmcvideo.c  --> xvmc.c

Diego