Implement syscall_num for all architectures
Implement syscall_num for all architectures

tyb0807/angr,angr/simuvex,iamahuman/angr,chubbymaggie/angr,angr/angr,tyb0807/angr,schieb/angr,axt/angr,iamahuman/angr,angr/angr,tyb0807/angr,axt/angr,f-prettyland/angr,schieb/angr,chubbymaggie/simuvex,chubbymaggie/simuvex,iamahuman/angr,zhuyue1314/simuvex,f-prettyland/angr,axt/angr,chubbymaggie/simuvex,f-prettyland/angr,chubbymaggie/angr,schieb/angr,angr/angr,chubbymaggie/angr