This quirk is needed to boot macOS 10.6 (and probably older) with 32-bit
kernel in 32-bit OVMF. Similar to 64-bit mode, hibernation wake is not
compatible with this quirk.
This change also partially fixes compatibility with a few other quirks
(e.g. AvoidRuntimeDefrag), but they are not really tested.
macOS 13 Developer Beta 1 introduced a new driver, bootrt.efi, which
now carries the kernel call gate. It communicates with efiboot via an
info buffer passed via LoadOptions. Patch it on load with our hook to
run our kernel entry code.
