[llvm-branch-commits] [sanitizer] Fix partially initialized static TLS range (PR #108685)

[Vitaly Buka via llvm-branch-commits]

https://github.com/vitalybuka created https://github.com/llvm/llvm-project/pull/108685

Fixes asan,msan crash on check added in #108684.
The #108684 includes reproducer of the issue.

Change interface of `GetThreadStackAndTls` to
set `tls_begin` and `tls_end` at the same time.