arm: fix a bug in the last commit
arm: fix a bug in the last commit

fvrmatteo/capstone,AmesianX/capstone,AmesianX/capstone,bSr43/capstone,xia0pin9/capstone,AmesianX/capstone,bSr43/capstone,fvrmatteo/capstone,bSr43/capstone,xia0pin9/capstone,xia0pin9/capstone,AmesianX/capstone,bSr43/capstone,xia0pin9/capstone,bSr43/capstone,fvrmatteo/capstone,AmesianX/capstone,xia0pin9/capstone,fvrmatteo/capstone,xia0pin9/capstone,fvrmatteo/capstone,AmesianX/capstone,fvrmatteo/capstone,bSr43/capstone,fvrmatteo/capstone,xia0pin9/capstone,AmesianX/capstone,bSr43/capstone