[llvm] [openmp] Reland: [OpenMP] Implement omp_get_uid_from_device() / omp_get_device_from_uid() (PR #168554)

[Michael Klemm via llvm-commits]

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@@ -491,13 +491,15 @@
 
         function omp_get_uid_from_device(device_num) bind(c)
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mjklemm wrote:

The interface of that function does not match the OpenMP specification.  I had missed that when I reviewed the first PR.  Please correct that.

https://github.com/llvm/llvm-project/pull/168554