mips: fix counters for loop_shift==0
mips: fix counters for loop_shift==0

Distrotech/orc,ijsf/OpenWebRTC-orc,mojaves/orc,ijsf/OpenWebRTC-orc,MOXfiles/orc,MOXfiles/orc,jpakkane/orc,jpakkane/orc,mojaves/orc,ijsf/OpenWebRTC-orc,mojaves/orc,okuoku/nmosh-orc,Distrotech/orc,Distrotech/orc,jpakkane/orc,MOXfiles/orc,okuoku/nmosh-orc,okuoku/nmosh-orc