[compiler-rt] [asan] Re-exec without ASLR if needed on 32-bit Linux (PR #131975)

[Rainer Orth via llvm-commits]

rorth wrote:

This patch broke (at least) the [Solaris/sparcv9](https://lab.llvm.org/buildbot/#/builders/13/builds/6060) and [Solaris/amd64](https://lab.llvm.org/staging/#/builders/120/builds/7073) bots: `<sys/personality.h>` is a Linux-only feature, while `asan_linux.cpp`, despite its name, is used by serveral Unix OSes.

Please fix.

https://github.com/llvm/llvm-project/pull/131975