fix(sidecar): rename P2P kv_transfer_params sub-dict keys to match vLLM#2140

vMaroon merged 4 commits into

llm-d:mainllm-d/llm-d-router:mainfrom

nilig:fix/p2p-kv-transfer-param-renamenilig/llm-d-router:fix/p2p-kv-transfer-param-renameCopy head branch name to clipboard