[compiler-rt] Link shared sanitizer runtime with libresolv for dn_expand (PR #116415)

[Aaron Puchert via llvm-commits]

aaronpuchert wrote:

@vitalybuka, I forgot to mention that we already link with `-lresolv`, but only in the static runtime case. This was done in 6dce56b2a3082191aa3d26abd4f05cf518d98356 and applies to all sanitizers, as far as I can tell. So here we're just bringing the shared runtime in line with that.

But I have no issue with disabling the interceptor for the address sanitizer, I'm just not sure where to put that yet.

https://github.com/llvm/llvm-project/pull/116415