Support RotaryEmbedding in GQA for webgpu ep#1847

kunal-vaishnavi merged 1 commit intomainmicrosoft/onnxruntime-genai:mainfrom

xiaofeihan/builder-webgpu-RoPEmicrosoft/onnxruntime-genai:xiaofeihan/builder-webgpu-RoPECopy head branch name to clipboard