Query for help: openmp support in asylo ?

[Van Yu]

Hi Asylo,

Is openmp supported in asylo ? Since asylo has implemented pthread stuff, I believe this is possible.

Now I got build errors like below when turning on "-fopenmp" cflags with asylo:

```

updater_skmaker.cc:(.text+0xa18): undefined reference to `GOMP_loop_dynamic_start'

updater_skmaker.cc:(.text+0xaf2): undefined reference to `GOMP_loop_dynamic_next'

updater_skmaker.cc:(.text+0xc48): undefined reference to `GOMP_loop_end_nowait'

```

We have several existing codes using openmp.

It would be nice to add openmp compatibility, otherwise users need to write explicit threads code to have threads acceleration.