[llvm] [AMDGPU][Offload] Enable memory manager use for up to ~3GB allocation size in omp_target_alloc (PR #151882)

[Joseph Huber via llvm-commits]

https://github.com/jhuber6 commented:

I'm wondering if it wouldn't be better to just expose the device's memory size and have the MemoryManager use that internally when configuring this.

https://github.com/llvm/llvm-project/pull/151882