Add detection of VP8 decoding capabilities
Add detection of VP8 decoding capabilities

Signed-off-by: Emeric Grange <4129e1f1d67b5074e8ad3db6514fae2f5cf1c5a9@gmail.com>

emericg/vdpauinfo-vp8,emericg/vdpauinfo-vp8,emericg/vdpauinfo-vp8,emericg/vdpauinfo-vp8