uefi-raw: Fix arg type in connect_controller

Accidentally left a TODO here, replace with `c_void` with `DevicePathProtocol`.

Author: nicholasbishop

uefi-raw/src/table/boot.rs

@@ -137,8 +137,7 @@ pub struct BootServices {
     pub connect_controller: unsafe extern "efiapi" fn(
         controller: Handle,
         driver_image: Handle,
-        // TODO
-        remaining_device_path: *const c_void,
+        remaining_device_path: *const DevicePathProtocol,
         recursive: bool,
     ) -> Status,
     pub disconnect_controller: unsafe extern "efiapi" fn(