Adding optional offloading of `eigh` computation to the host because of a bug in CUDA 11.7.0 cuSOLVER library.
Adding optional offloading of `eigh` computation to the host because of a bug in CUDA 11.7.0 cuSOLVER library.

PiperOrigin-RevId: 471591520

deepmind/kfac-jax,deepmind/kfac-jax