Update package_etw.bat to build flame_graph.exe
Update package_etw.bat to build flame_graph.exe

ariccio/UIforETW,google/UIforETW,ariccio/UIforETW,mwinterb/UIforETW,MikeMarcin/UIforETW,google/UIforETW,google/UIforETW,MikeMarcin/UIforETW,mwinterb/UIforETW,google/UIforETW,mwinterb/UIforETW,ariccio/UIforETW,MikeMarcin/UIforETW,ariccio/UIforETW