Adapt tb_end for regresion test.

libraries/io/tr_nonbonded/tb/vhdl/tb_tb_tr_nonbonded.vhd

libraries/io/tr_nonbonded/tb/vhdl/tb_tr_nonbonded.vhd

libraries/io/tr_xaui/tb/vhdl/tb_tb_tr_xaui.vhd