[llvm] [openmp] [OpenMP] Fix target data region codegen being omitted for device pass (PR #85218)

[Akash Banerjee via llvm-commits]

TIFitis wrote:

@skatrak I've added a test to the OpenMPIRBuilderTest file. Let me know if it's how you wanted.

https://github.com/llvm/llvm-project/pull/85218