hsdis binary is expected to be provided in CompoundVM

The hsdis library is useful for diagnosing and debugging.
But it would be a little complex to setup a workable environment to build a compatible binary libhsdis.so. (see https://www.morling.dev/blog/building-hsdis-for-openjdk-15/)

In the private repository at ByteDance there is some special place to hold the binaries of hsdis; but when we decided to opensource this project, below lines got commented out:
https://github.com/bytedance/CompoundVM/blob/c777c7db402bb7e631221d7e63a0c6fcca47cf79/cvm.mk#L142
https://github.com/bytedance/CompoundVM/blob/c777c7db402bb7e631221d7e63a0c6fcca47cf79/cvm.mk#L146

and this ought to be fixed :)