This include is only required if typeof() macro is used, which
is not the case for the serial / uart driver.
Signed-off-by: Martin Jäger <martin@libre.solar>
This peripheral combines a hardware-based USB CDC ACM serial interface
and a JTAG interface.
It is present in the ESP32-C3.
Signed-off-by: Martin Jäger <martin@libre.solar>