platforms/stm32f7: add reusable F722 firmware

libs/kaptan-i2c/src/lib.rs

@@ -42,7 +42,7 @@ pub trait I2cBus {
     /// [`Self::start_read`] for the completed read transaction.
     fn complete_transaction(&mut self, completion: I2cCompletion, read: Option<&mut [u8]>);
 
-    /// Cancels an in-flight transaction after a board-selected timeout.
+    /// Cancels an in-flight transaction after a platform-selected timeout.
     ///
     /// Implementations must release controller-owned transaction state and
     /// arrange for any required STOP or peripheral recovery without waiting.