build: build multiprocessor, APIC and ACPI support in by default.
build: build multiprocessor, APIC and ACPI support in by default.

Soon, I'd like to get ACPICA ported and get some proper ACPI support going,
and I'd also like to look at getting proper support for the I/O APIC and
related devices.

jmolloy/pedigree,jmolloy/pedigree,jmolloy/pedigree,jmolloy/pedigree,jmolloy/pedigree,jmolloy/pedigree,jmolloy/pedigree