intel-vaapi-driver 2.4.1

• Bump version to 2.4.1 for maintenance release
• Fix compiler errors with gcc 10
• Relax the compressed frames minimum size restriction for VP9 encoder

git tag: 2.4.1
sha1sum: c998e06f13238c6419bb38ede9a13e453312737b intel-vaapi-driver-2.4.1.tar.bz2