see if this fixes the eth tx lockup
try to fix RR-NET TX buffer writing.
fix clearing of eth_tx_complete
try to debug RR-NET eth TX bugs
fix another RR-NET buffer writing bug.
try to see why RR-NET TX doesn't trigger (although buffer loads
correctly now).
make RR-NET TX trigger when buffer full instead of full +2
more debugging RR-NET TX bugs
disable video streaming on first power on.
try fixing expression formulation for RR-NET TX bug.
even more RR-NET debugging
kickstart in cpu test bench enabled by default.
include RR-NET test TX to kickstart.