[libcxx-commits] [libcxx] [libc++abi][test][VE] Add '-ldl' to support VE (PR #66605)

[Kazushi Marukawa via libcxx-commits]

kaz7 wrote:

> > We don't want to start encoding target-specific information in our testing config files. If you need something specific for `ve`, the right way to do that would be to instead create a `ve-libc++abi-shared.cfg.in` file or something similar.
> I see. I'll do that.

I add following 2 configuration files for VE.  We will specifies them from LIBCXXABI_TEST_CONFIG and LIBCXX_TEST_CONFIG cmake variables.
```
 libcxx/test/configs/ve-libc++-shared.cfg.in       | 28 +++++++++++++++++++++++
 libcxxabi/test/configs/ve-libc++abi-shared.cfg.in | 28 +++++++++++++++++++++++
```

https://github.com/llvm/llvm-project/pull/66605