neuron dlc update 2.21 (#4471)

available_images.md

@@ -299,6 +299,8 @@ Note: Starting from Neuron SDK 2.17.0, Dockerfiles for PyTorch Neuron Containers
 
 | Framework                                                                                                                                          | Neuron Package                                           | Neuron SDK Version | Job Type  | Supported EC2 Instance Types | Python Version Options | Example URL                                                                                                          |
 |----------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------|--------------------|-----------|------------------------------|------------------------|----------------------------------------------------------------------------------------------------------------------|
+| [PyTorch 2.5.1](https://github.com/aws-neuron/deep-learning-containers/blob/2.21.0/docker/pytorch/inference/2.5.1/Dockerfile.neuronx)              | torch-neuronx, transformers-neuronx, neuronx_distributed, neuronx_distributed_inference | Neuron 2.21.0      | inference | trn1,trn2,inf2                    | 3.10 (py310)           | 763104351884.dkr.ecr.us-west-2.amazonaws.com/pytorch-inference-neuronx:2.5.1-neuronx-py310-sdk2.21.0-ubuntu22.04     |
+| [PyTorch 2.5.1](https://github.com/aws-neuron/deep-learning-containers/blob/2.21.0/docker/pytorch/training/2.5.1/Dockerfile.neuronx)              | torch-neuronx, transformers-neuronx, neuronx_distributed, neuronx_distributed_training | Neuron 2.21.0      | inference | trn1,trn2,inf2                    | 3.10 (py310)           | 763104351884.dkr.ecr.us-west-2.amazonaws.com/pytorch-training-neuronx:2.5.1-neuronx-py310-sdk2.21.0-ubuntu22.04     |
 | [PyTorch 2.1.2](https://github.com/aws-neuron/deep-learning-containers/blob/2.20.2/docker/pytorch/inference/2.1.2/Dockerfile.neuronx)              | torch-neuronx, transformers-neuronx, neuronx_distributed | Neuron 2.20.2      | inference | trn1,inf2                    | 3.10 (py310)           | 763104351884.dkr.ecr.us-west-2.amazonaws.com/pytorch-inference-neuronx:2.1.2-neuronx-py310-sdk2.20.2-ubuntu20.04     |
 | [PyTorch 2.1.2](https://github.com/aws-neuron/deep-learning-containers/blob/2.20.2/docker/pytorch/training/2.1.2/Dockerfile.neuronx)               | torch-neuronx, neuronx_distributed                       | Neuron 2.20.2      | training  | trn1, inf2                   | 3.10 (py310)           | 763104351884.dkr.ecr.us-west-2.amazonaws.com/pytorch-training-neuronx:2.1.2-neuronx-py310-sdk2.20.2-ubuntu20.04      |
 | [PyTorch 1.13.1](https://github.com/aws-neuron/deep-learning-containers/blob/2.20.2/docker/pytorch/inference/1.13.1/Dockerfile.neuron)             | torch-neuron                                             | Neuron 2.20.2      | inference | inf1                         | 3.10 (py310)           | 763104351884.dkr.ecr.us-west-2.amazonaws.com/pytorch-inference-neuron:1.13.1-neuron-py310-sdk2.20.2-ubuntu20.04      |