c14118a841
Implement ARPC. In first time, we are going to use it to implement new request but the goal is to update all existing vendor request to use ARPC. In addition, Convert the current USB Vendor request for CPort Reset to ARPC so that we can be sure that the port has been fully reset by the time the request completes. Testing Done: AP can reset APBA Cports by using the ARPC command. In addition, tested with a hacked firmware that cause error during the Cport reset, and Greybus printed the error "failed to reset cport". Signed-off-by: Alexandre Bailon <abailon@baylibre.com> Reviewed-by: Johan Hovold <johan@hovoldconsulting.com> Signed-off-by: Alex Elder <elder@linaro.org>