[clang] clang: Add BoundArch/OffloadKind argument to getSupportedSanitizers (PR #196503)

[Matt Arsenault via cfe-commits]

arsenm wrote:

This doesn't change anything yet and is the boilerplate. The main change is for the offload kind which fixes hacks for the toolchain as a whole. The BoundArch additionally is needed for the xnack asan filtering 

https://github.com/llvm/llvm-project/pull/196503