CodeGen_ARM now always replaces profiling_timer with halide_current_time_ns
CodeGen_ARM now always replaces profiling_timer with halide_current_time_ns

Both Android and iOS disable user-mode access to the cycle counter in
stock builds; might as well assume that all ARM devices should avoid
using the cycle counter.

myrtleTree33/Halide,ronen/Halide,mikeseven/Halide,dan-tull/Halide,adasworks/Halide,damienfir/Halide,delcypher/Halide,kgnk/Halide,psuriana/Halide,adasworks/Halide,dan-tull/Halide,damienfir/Halide,rodrigob/Halide,lglucin/Halide,adasworks/Halide,gchauras/Halide,aam/Halide,rodrigob/Halide,ayanazmat/Halide,kgnk/Halide,ayanazmat/Halide,lglucin/Halide,kgnk/Halide,dan-tull/Halide,dougkwan/Halide,myrtleTree33/Halide,smxlong/Halide,ayanazmat/Halide,smxlong/Halide,kenkuang1213/Halide,smxlong/Halide,smxlong/Halide,aam/Halide,tdenniston/Halide,damienfir/Halide,fengzhyuan/Halide,kenkuang1213/Halide,ronen/Halide,fengzhyuan/Halide,lglucin/Halide,dan-tull/Halide,kgnk/Halide,kenkuang1213/Halide,lglucin/Halide,ronen/Halide,mcanthony/Halide,myrtleTree33/Halide,rodrigob/Halide,ayanazmat/Halide,mcanthony/Halide,fengzhyuan/Halide,jiawen/Halide,psuriana/Halide,dougkwan/Halide,jiawen/Halide,ayanazmat/Halide,aam/Halide,kgnk/Halide,dougkwan/Halide,kenkuang1213/Halide,tdenniston/Halide,delcypher/Halide,mikeseven/Halide,aam/Halide,gchauras/Halide,psuriana/Halide,kenkuang1213/Halide,damienfir/Halide,myrtleTree33/Halide,kenkuang1213/Halide,smxlong/Halide,tdenniston/Halide,damienfir/Halide,gchauras/Halide,mikeseven/Halide,mikeseven/Halide,fengzhyuan/Halide,rodrigob/Halide,rodrigob/Halide,fengzhyuan/Halide,mcanthony/Halide,ronen/Halide,myrtleTree33/Halide,myrtleTree33/Halide,ayanazmat/Halide,aam/Halide,dougkwan/Halide,mikeseven/Halide,myrtleTree33/Halide,ronen/Halide,rodrigob/Halide,gchauras/Halide,jiawen/Halide,ronen/Halide,tdenniston/Halide,delcypher/Halide,smxlong/Halide,mcanthony/Halide,kenkuang1213/Halide,fengzhyuan/Halide,jiawen/Halide,damienfir/Halide,dan-tull/Halide,smxlong/Halide,lglucin/Halide,gchauras/Halide,delcypher/Halide,rodrigob/Halide,ronen/Halide,dougkwan/Halide,kgnk/Halide,psuriana/Halide,aam/Halide,smxlong/Halide,fengzhyuan/Halide,myrtleTree33/Halide,delcypher/Halide,fengzhyuan/Halide,jiawen/Halide,tdenniston/Halide,psuriana/Halide,adasworks/Halide,gchauras/Halide,adasworks/Halide,lglucin/Halide,mcanthony/Halide,delcypher/Halide,adasworks/Halide,adasworks/Halide,dan-tull/Halide,kenkuang1213/Halide,adasworks/Halide,ayanazmat/Halide,dougkwan/Halide,psuriana/Halide,ayanazmat/Halide,damienfir/Halide,kgnk/Halide,tdenniston/Halide,ronen/Halide,jiawen/Halide,mcanthony/Halide,damienfir/Halide,tdenniston/Halide,rodrigob/Halide,psuriana/Halide,aam/Halide,kgnk/Halide,tdenniston/Halide,dan-tull/Halide,dougkwan/Halide,dan-tull/Halide,dougkwan/Halide,lglucin/Halide,delcypher/Halide,jiawen/Halide,mcanthony/Halide,mcanthony/Halide,delcypher/Halide