uspace: implement rtapi_parport
hal_parport: Build for uspace

.. and delete the near-copy in "simdrivers", which is no longer needed.
uspace: Allow the upper-bound value to be parenthesized

It's common to define an integral constant like this:
#define MAX_FJORDS (4)

but when such a constant is used as the argument to RTAPI_MP_ARRAY_xxx,
it was treated as invalid: "corrupt array type information".

Permitting a single set of parens around the upper-bound value fixes
this.
uspace: Report the "corrupt" array type information

.. this is typically useful for diagnosing the problem.
uspace: implement rtapi_delay_max for hm2_7i43
hostmot2: port 7i43 (tested) and 7i90 (untested) to uspace
hm2_7i43: Automatically fall back to byte transfers

This detects the problem with wide transfers that affects my
PCI-E parport based on the OXPCIe952.
setsserial: port to uspace and enable (untested)