[compiler-rt] Add API to temporalily suppress usage of ASAN's fake stack (PR #160135)

[Thurston Dang via llvm-commits]

thurstond wrote:

> I added tests to clarify the behavior. Changed the naming and also used a counter.
> 
> As stated before the intention is to always suppress/disable fake stack `__asan_suppress_fake_stack()`, but not reenable it with `__asan_unsuppress_fake_stack()` if disabled via some other option.

Thanks, LGTM!

https://github.com/llvm/llvm-project/pull/160135