Add more timing to debug Hexagon runtime.
Add more timing to debug Hexagon runtime.

kgnk/Halide,kgnk/Halide,ronen/Halide,psuriana/Halide,psuriana/Halide,psuriana/Halide,jiawen/Halide,jiawen/Halide,jiawen/Halide,jiawen/Halide,kgnk/Halide,kgnk/Halide,psuriana/Halide,psuriana/Halide,jiawen/Halide,psuriana/Halide,jiawen/Halide,psuriana/Halide,ronen/Halide,ronen/Halide,kgnk/Halide,kgnk/Halide,ronen/Halide,jiawen/Halide,kgnk/Halide,ronen/Halide,ronen/Halide,ronen/Halide,kgnk/Halide,ronen/Halide