Update to prepare the core for TFCv2

Merged Vladimir Sidorenko requested to merge devel_vs into master
  • Added rx_headerflag to AGWB interface for Rx word alignment
  • Moved Rx/Tx latency optimisation configuration to generics
  • Added latch_rxdata_sp process in gbt_fpga_common.vhd to relax timing requirements
  • Updated IP cores to Vivado 2021.2

Changes verified in https://git.cbm.gsi.de/daq/fpga-firmware/tfc/cri-tfc-v2/-/commit/d8f52e7eee6c376ac1729f30d07ce28ab7e1679b

Merge request reports