[clang] [CUDA] Move CUDA to new driver by default (PR #122312)

[Artem Belevich via cfe-commits]

Artem-B wrote:

One thing that's missing is the release note. It should have an entry about the change and a pointer to the details and instructions on how to revert to the new build and, possibly a set of instructions for common use cases. E.g. GPU-linking a library (i.e. linking RDC-compiled GPU objects in the library into a single GPU executable, so the library no longer needs GPU-aware linking for the final executable)

https://github.com/llvm/llvm-project/pull/122312