vaapiIntel: bump to 2.2.0, don't force using matching version w/libva

If there was a 2.3.0 we would use that, but there isn't and only
version requirement mentioned is libva >= 1.1.0 .

(they also test against libva git in the travis.yml, FWIW)

https://github.com/intel/intel-vaapi-driver/releases/tag/2.2.0