[llvm] [flang-rt] Add support for logical binary input edit descriptor (PR #193490)

[John Otken via llvm-commits]

================

----------------
jotken wrote:

Will do.  Check-flang, check-flang-rt, and llvm-test-suite are on my pre-PR checklist.  I will adapt my internal test for a post-merge PR for llvm-test-suite.  Thanks for the detailed review.

https://github.com/llvm/llvm-project/pull/193490