corrected register width of bsn monitor ring bf

...far2_unb2b_sdp_station/lofar2_unb2b_sdp_station.fpga.yaml

...dp_station/src/vhdl/qsys_lofar2_unb2b_sdp_station_pkg.vhd

...far2_unb2c_sdp_station/lofar2_unb2c_sdp_station.fpga.yaml

...dp_station/src/vhdl/qsys_lofar2_unb2c_sdp_station_pkg.vhd

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

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