Refactor flags computation for ARM
Refactor flags computation for ARM

angr/angr,tyb0807/angr,iamahuman/angr,angr/angr,schieb/angr,schieb/angr,iamahuman/angr,chubbymaggie/angr,iamahuman/angr,schieb/angr,f-prettyland/angr,tyb0807/angr,chubbymaggie/angr,f-prettyland/angr,f-prettyland/angr,chubbymaggie/angr,tyb0807/angr,angr/angr