new ckb fpga miner,fix some bug,devfee 6%,9.4gh/s,add frequency change
set in miner ,0=500M,1=600M,2=650M,3=700M
https://drive.google.com/open?id=1Gz-034RlA3VNlUSKQAbGj_hRYEI5L5jI
set in miner ,0=500M,1=600M,2=650M,3=700M
https://drive.google.com/open?id=1Gz-034RlA3VNlUSKQAbGj_hRYEI5L5jI
for btu-9p normal this bitstream and miner ?