[compiler-rt] [llvm] [RISCV][sanitizer] Fix sanitizer support for different virtual memory layout (PR #66743)

[Luís Marques via llvm-commits]

luismarques wrote:

> Of course, thanks for your help :)

Sorry for the delay. Here's the output I had with the original patches. It shows two things:

1. The raw output of running `strncat-overlap.cpp.tmp` (without the `FileCheck`)
2. The output of the complete `check asan`

https://gist.github.com/luismarques/ea23dc29ead9889382e0fc90c7f1ae97

Let me try the updated PR as well.

https://github.com/llvm/llvm-project/pull/66743