getting XESS_SdramSPInstTB.vhd ready to get simulation working.

adding the muxsel_r & muxsel_x to XESS_JPEG_TOP_INSTANCE_6_FSM
python sdram_test.py

0b00000000000000000000000 0x01a9 0x0000 0b000010001
The 0x01a9 which is 425 is okay not. addr_r is zero since the muxsel_r needs
to be 1 to see dout_res_r which still is zero.