winpr-comm: fixed set_baud_rate()/get_baud_rate() functions in comm_serial_sys.c (the issue came from a wrong extrapolation of the COMMPROP's MaxBaud field)
winpr-comm: got rid of SERIAL_BAUD_* values which are identical to BAUD_* ones
serial: ability to turn on the permissive mode from the command line
Merge pull request #2101 from eledoux/ports

Ports