Merge branch 'L2SDP-546' into 'master'

.../designs/lofar2_unb2b_ring/src/vhdl/lofar2_unb2b_ring.vhd

...2_unb2b_sdp_station/src/vhdl/lofar2_unb2b_sdp_station.vhd

...2_unb2c_sdp_station/src/vhdl/lofar2_unb2c_sdp_station.vhd

...unb2c_sdp_station/tb/vhdl/tb_lofar2_unb2c_sdp_station.vhd

.../libraries/sdp/src/vhdl/node_sdp_adc_input_and_timing.vhd

applications/lofar2/libraries/sdp/src/vhdl/sdp_pkg.vhd

applications/lofar2/libraries/sdp/src/vhdl/sdp_station.vhd