x86_64/system: Implement PS/2 keyboard and mouse drivers

Author: marv7000

kernel/src/arch/x86_64/system/mod.rs

@@ -3,6 +3,7 @@ pub mod apic;
 pub mod gdt;
 mod hpet;
 pub mod idt;
+mod ps2;
 mod serial;
 mod smp;
 mod tsc;