macOS Intel/AMD/Nvidia HDMI audio with Clover
Note: cloverHDMI script does not support Mojave and newer Skylake and newer framebuffer patching
Intel/AMD/Nvidia HDMI audio: try WhateverGreen.kext
See https://www.insanelymac.com/forum/topic/325987-whatevergreen-support-topic/
Nvidia HDMI audio also requires AppleALC.kext
See https://github.com/acidanthera/AppleALC