WIP: ps2 bus driver

system/drivers/ps2-bus/keyboard.zig

@@ -0,0 +1,12 @@
+//! PS/2 Keyboard Driver
+
+const std = @import("std");
+const runtime = @import("runtime");
+const ps2 = @import("root.zig");
+const device = runtime.device;
+
+pub fn main() void {
+  // TBD
+  _ = runtime.system.write("system/drivers/ps2-bus/keyboard: ok\n");
+  while (true) runtime.system.sleep(1000);
+}