[flang-commits] [clang] [flang] [flang][OpenMP] Upstream first part of `do concurrent` mapping (PR #126026)

[Kareem Ergawy via flang-commits]

ergawy wrote:

@skatrak @kiranchandramohan I removed the "current status" part of the document. Left the other sections since they are not related to upcoming upstreaming PRs.

https://github.com/llvm/llvm-project/pull/126026