Add virtio driver for aarch64 with only input for now, move keyboard,

mouse and other io logic to an io folder, make ps2 convert to linux
event codes like virtio, force modern mmio and gic version 2 on aarch64

kernel/src/task/process.rs

@@ -1,7 +1,8 @@
 use alloc::vec::Vec;
 
 use crate::{
-    driver::keyboard::KeyboardEvent, mm::address_space::AddressSpace, task::context::UserContext,
+    driver::io::keyboard::KeyboardEvent, mm::address_space::AddressSpace,
+    task::context::UserContext,
 };
 
 pub enum ProcessState {