[eagle][cp] fix eagle_cp enable bug2 (#7079)

### What this PR does / why we need it?
Fix acceptance and high-concurrency bug in eagle3 and cp enabled

### Does this PR introduce _any_ user-facing change?
no

### How was this patch tested?
tests and ut

- vLLM version: v0.16.0
- vLLM main:
4034c3d32e

---------

Signed-off-by: lilinsiman <lilinsiman@gmail.com>

vllm_ascend/worker/model_runner_v1.py

@@ -1016,7 +1016,7 @@ class NPUModelRunner(GPUModelRunner):
                     target_positions = self._get_positions(num_scheduled_tokens)
                     target_hidden_states = hidden_states
                     if self.use_aux_hidden_state_outputs:
-                        target_hidden_states = torch.cat([h[:num_scheduled_tokens] for h in aux_hidden_states], dim=-1)
+                        target_hidden_states = torch.cat([h for h in aux_hidden_states], dim=-1)
                 else:
                     token_indices_to_sample = None
                     # input_ids can be None for multimodal models.