Fix build flags for ios.
Fix build flags for ios.

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