[llvm] [mlir] [OMPIRBuilder] - Make offloading input data persist for deferred target tasks (PR #133499)

[Tom Eccles via llvm-commits]

tblah wrote:

The approach seems okay to me but this needs detailed review from somebody who understands target offload. Thanks for the patch Pranav.

https://github.com/llvm/llvm-project/pull/133499