wrong almost_full fifo thresholds in csr wb master
The sizes of to_wb and from_wb fifo were reduced in commit 4a430af from 512 to 128 words. However, almost_full thresholds were still set to 500. As the result some of the requests were lost when fifo was full because this fact was never signaled to the gn4124 chip.
I saw the problem when running WR PTP Core with the latest gennum core and trying to load the LM32 firmware binary using spec-cl tool from spec-sw package.
It looks like this issue may be related to issue 1106