PUC_PORT_TYPE_COM, use it to store the clock frequency (with 8 lower bits
to 0, used for real flags if needed).
Update all descriptions to set flags to 0 for LPT or COM_FREQ for COM.
Add support for the VScom PCI-800H 8 port serial adapter (which uses
a 14.7456 Mhz crystal instead of the standart 1.8432Mhz :)
XXX now that we can pass other frequency than COM_FREQ, the VScom PCI-800
entry could probably be updated to DTRT - does anyone have one ?
286f4f934f