434059e417
### What this PR does / why we need it? Because the update_attn_params function requires passing the num_tokens parameter, and num_tokens is obtained via postions.shape[0]. However, the multimodal model uses mrope (Multidimensional Rotary Position Embedding), which results in the postions having a shape of 2. Consequently, postions.shape[0] retrieves an incorrect value.We resolve this issue by replacing positions.shape[0] with maybe_padded_num_tokens. - vLLM version: v0.11.0rc3 - vLLM main: https://github.com/vllm-project/vllm/commit/v0.11.0 Signed-off-by: fan2956 <zhoufan53@huawei.com>