usb_rx_mass verificaton

[jinz2014]

Hello,

It will be helpful update the usb_rx_mass program in Python to verify the data read on a host match the data generated by the FPGA logic ? Currently, it checks the lengths of the data. Thanks.

       if expect_len != rx_len :
            print('*** expect_len (%d) and rx_len (%d) mismatch' % (expect_len, rx_len) )
            break