intel/libva 2.2.0.pre1

Preliminary release for packaging libva-2.2.0.pre1

on GitHub

• Bump VA-API version to 1.2.0 and libva to 2.2.0
• Add support for hevc range extension decoding
• Add support for fast intra prediction in HEVC FEI
• Add 10/12-bit YUV render target formats
• Add fourcc code for Y210/Y216/Y410/Y416/RGB565/BGR565
• Add VA_STATUS_ERROR_NOT_ENOUGH_BUFFER
• Add VA_SURFACE_ATTRIB_USAGE_HINT_EXPORT
• Improve documentation

git tag: 2.2.0.pre1