[TEST]Add aisbench log and A2 cases (#3841)

### What this PR does / why we need it?
This PR adds 2 more A2 caces which we need to test daily. It also
enhances the logging for aisbench test failures to improve issues
identification
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
By running the test

- vLLM version: v0.11.0rc3
- vLLM main:
https://github.com/vllm-project/vllm/commit/releases/v0.11.1

---------

Signed-off-by: jiangyunfan1 <jiangyunfan1@h-partners.com>

tests/e2e/nightly/multi_node/config/models/DeepSeep-R1-W8A8-A2.yaml

@@ -30,7 +30,7 @@ deployment:
       --quantization ascend
       --gpu-memory-utilization 0.9
       --enforce-eager
-      --speculative-config '{"num_speculative_tokens": 1, "method":"deepseek_mtp"}' \
+      --speculative-config '{"num_speculative_tokens": 1, "method":"deepseek_mtp"}'
       --additional-config '{"ascend_scheduler_config":{"enabled":false},"chunked_prefill_for_mla":true,"enable_weight_nz_layout":true}'
 
   -
@@ -52,6 +52,6 @@ deployment:
       --quantization ascend
       --gpu-memory-utilization 0.9
       --enforce-eager
-      --speculative-config '{"num_speculative_tokens": 1, "method":"deepseek_mtp"}' \
+      --speculative-config '{"num_speculative_tokens": 1, "method":"deepseek_mtp"}'
       --additional-config '{"ascend_scheduler_config":{"enabled":false},"chunked_prefill_for_mla":true,"enable_weight_nz_layout":true}'
 benchmarks: