add wrpc/wrc_phy16_direct_dmtd.bram (spll KP parameters times 5 due to VCXOs range 20 ppm, incremented mode master lock timeout)
wrc_phy16_direct_dmtd.bram build with:
wrpc-sw.git peter_direct_dmtd SHA 50f1c0e
ppsi.git peter_direct_dmtd SHA bf5f6de