Add HIL test for bufferedUart

embassy-rp/src/uart/buffered.rs

@@ -1,11 +1,10 @@
-use core::future::Future;
+use core::future::{poll_fn, Future};
 use core::task::{Poll, Waker};
 
 use atomic_polyfill::{compiler_fence, Ordering};
 use embassy_cortex_m::peripheral::{PeripheralMutex, PeripheralState, StateStorage};
 use embassy_hal_common::ring_buffer::RingBuffer;
 use embassy_sync::waitqueue::WakerRegistration;
-use futures::future::poll_fn;
 
 use super::*;