* CUDA: extend MOE fusion to specdec, earlier MOE glu fusion and topk-router fusion were resticted to 1 token Signed-off-by: ynankani <ynankani@nvidia.com> * Address review comments Signed-off-by: ynankani <ynankani@nvidia.com> * Add SWIGLU_CLAMP case to multi-token moe fusion Signed-off-by: ynankani <ynankani@nvidia.com> --------- Signed-off-by: ynankani <ynankani@nvidia.com>