[compiler-rt] [rtsan] Add Support for Realtime Sanitizer for SystemZ (PR #165259)

[Chris Apple via llvm-commits]

https://github.com/cjappl commented:

A few general questions:

Do you have a docker image or similar that we can run the tests in so @davidtrevelyan and I can support this configuration going forward?

Have you run the rtsan tests locally on your machine, and ensured they are all passing?

https://github.com/llvm/llvm-project/pull/165259