Add catch for uboot

Apparently, you can just run "boot" in a uboot prompt to get to the
login prompt.

src/device.rs

@@ -115,8 +115,9 @@ impl Device{
                         initial_state = State::LoginPrompt;
                     },
                     Response::UBoot=>{
-                        log::error!("A device was interrupted during the boot process! Please ensure all devices are completely booted and on the main screen, then restart this program.");
-                        return Err("Failed TTY init. Device in u-boot state, must be manually rebooted.".to_string());
+                        usb_port.write_to_device(Command::Boot);
+                        while usb_port.read_from_device(None) != Response::LoginPrompt {}
+                        initial_state = State::LoginPrompt;
                     },
                         //Response::Empty parsing here is potentially in bad faith
                     Response::Other | Response::Empty | Response::ShellPrompt | Response::FailedDebugMenu | Response::DebugInit |

src/tty.rs

@@ -28,6 +28,7 @@ pub enum Command{
     Newline,
     Reboot,
     GetSerial,
+    Boot,
 }
 
 #[derive(Clone,Eq,Derivative,Debug)]
@@ -68,6 +69,7 @@ const COMMAND_MAP:Lazy<HashMap<Command,&str>> = Lazy::new(||HashMap::from([
     (Command::DebugMenu,"python3 -m debugmenu\n"),
     (Command::Newline,"\n"),
     (Command::Reboot,"shutdown -r now\n"),
+    (Command::Boot,"boot\n"),
     (Command::GetSerial,"echo 'y1q' | python3 -m debugmenu\n"),
 ]));