tools: kwboot: Disable tty interbyte timeout

Function kwboot_tty_recv() has its own handling of read timeout, we
don't need to do set it in tty settings.

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>

tools/kwboot.c

@@ -655,7 +655,7 @@ kwboot_open_tty(const char *path, int baudrate)
 	cfmakeraw(&tio);
 	tio.c_cflag |= CREAD|CLOCAL;
 	tio.c_cc[VMIN] = 1;
-	tio.c_cc[VTIME] = 10;
+	tio.c_cc[VTIME] = 0;
 
 	rc = tcsetattr(fd, TCSANOW, &tio);
 	if (rc)