[ffmpeg/el8] (6 commits) ...Update to 4.2.2 release

Summary of changes: f77f0d8... Enable zimg support (*) 191efa4... Enable xcb support (*) b953c71... Rebuilt for x265 (*) 2b01a5e... Update build requires for libmfx change (*) 25a6a74... Mass rebuild for x264 (*) 9923a09... Update to 4.2.2 release (*) (*) This commit already existed in another branch; no separate mail sent