Updated to OpenCore 0.8.1 / Big Sur 11.6.6

Updated EFI for OpenCore 0.8.1 / Used on Big Sur 11.6.6

What's Changed

• Updated to OC 0.8.1 build / macOS 11.6.6 by @osx86-ijb in #1
• Merge pull request #1 from osx86-ijb/master by @osx86-ijb in #2

New Contributors

• @osx86-ijb made their first contribution in #1

Full Changelog: 1.0.0...0.8.1