Support mixed strategy in NVIDIA MIG.

[KCSesh]

On Bottlerocket 1.34.0 MIG support was added for MIG_STRATEGY single.

What I'd like: To support mixed strategy, which allows a node to expose a mixture of MIG device types across all of its GPUs, where single replicates the same single size across the GPUs available on the node.

See discussion: https://github.com/bottlerocket-os/bottlerocket/discussions/4436

Any alternatives you've considered: Running multiple nodes that support MIG, with custom MIG profiles per node.