Apply printf bug workaround, implement setjmp and longjmp for arm
Completeley remove vfp code from _setjmp and _longjmp as this isn't supported within the kernel
Implement machine_delay_until and machine_boot_info for arm
Include atomic_add_64 macro for arm
Implement PE_current_console for arm pexpert
We don't really need this in the kernel
Merge https://github.com/b-man/xnu

Conflicts:
	pexpert/arm/pe_init.c