PSTATS_NPORTS in the kernel driver should be set by default to 18 ports, because
it's also used to create a table for cntrs values read from FPGA. If driver is
supposed to run on 8-port version of WRS, the parameter pstats_nports should be
set at load time.

Requires HDL commit named the same.

Conflicts:

	userspace/include/fpga_io.h

wrsw_rtud: fixed serious misconfiguration: default config was to set fixed priority (seems bad, prevented priorities from working), current default: take priority from incoming frames

[rtud] initializing variables to be written to H/W - caused bug in writing frame-class to priority (switch internal)

[rtud/ep] proper frame-class (in VLAN-TAG) to traffic-class (internal priority) mapping configuration