Revert "[Sanitizers] Remove OpenBSD support" + 1

Revert "Fix compiler-rt build on Windows after D89640"

This reverts commit a7acee89d68473183cc5021d952a56cdf0ae27d3.
This reverts commit d09b08919ca6e206cd981fdea8b19b1d1188e325.

Reason: breaks Linux / x86_64 build.
GitOrigin-RevId: 7ecd60bb7022bb681b9dc01a9c232fd93b4b169c
6 files changed