Fixed g_mm_rd_latency = 1 for u_mm_file_jesd204b.

...b2b_sdp_station/src/vhdl/mmm_lofar2_unb2b_sdp_station.vhd

...b2c_sdp_station/src/vhdl/mmm_lofar2_unb2c_sdp_station.vhd