Update OpenCore to 0.8.8

[Qonfused]

Release article: https://dortania.github.io/hackintosh/updates/2023/01/04/acidanthera-january.html

Notable changes to OpenCore and surrounding kexts:

• SD card path support for boot device selection
• VoodooInput updated to version 1.1.3 (now appears to be maintained)
• VoodooPS2 2.3.3 adds fixes for scrolling and button issues

[Qonfused]

Resolved in commit aae14c8.