updated Scalp Router for debugging

...vado/scalp_firmware/2020.2/src/constrs/scalp_firmware.xdc

.../scalp_firmware/2020.2/src/constrs/timing_constraints.xdc

...s/vivado/scalp_firmware/2020.2/src/hdl/scalp_firmware.vhd

ips/hw/scalp_router/src/hdl/scalp_router.vhd

ips/hw/scalp_router/src/hdl/scalp_router_interface.vhd

ips/hw/scalp_router/src/hdl/scalp_rx_side.vhd

ips/hw/scalp_router/src/hdl/scalp_tx_side.vhd

soc/hw/scalp_zynqps/src/hdl/scalp_zynqps_wrapper.vhd