make the TEST pin to be reset_n.
  update bin/wrpc/wrc_phy16.bram

	Set the 2 and 3 channel output frequency of AD9516 to 500Hz.

- Add generic parameter for the SDB info of the auxiliary interface of the WRPC.
- Export pps_csync and pps_valid ports from the WRPC.

wr_nic_wrapper: Fix copyright issues.

Fix a place & route error related to the OBUF used for PPS output signal.

It's used only locally in dmtd sampler. We don't have enough global
clock nets in Virtex6 for 18-port version of WRS.