[Fusion] normalize fusion naming and enable e2e test (#4693)

### What this PR does / why we need it?
This PR standardizes the fusion naming, changing
`enable_quantization_fusion` to `fuse_norm_quant`, and enables e2e
testing.

### Does this PR introduce _any_ user-facing change?
N/A

### How was this patch tested?
CI passed with new added/existing test.

- vLLM version: v0.12.0
- vLLM main:
ad32e3e19c

---------

Signed-off-by: wxsIcey <1790571317@qq.com>

tests/ut/test_ascend_config.py

@@ -41,14 +41,14 @@ class TestAscendConfig(TestBase):
         self.assertFalse(ascend_config.multistream_overlap_shared_expert)
 
         ascend_compilation_config = ascend_config.ascend_compilation_config
-        self.assertTrue(ascend_compilation_config.enable_quantization_fusion)
+        self.assertTrue(ascend_compilation_config.fuse_norm_quant)
 
     @_clean_up_ascend_config
     def test_init_ascend_config_with_additional_config(self):
         test_vllm_config = VllmConfig()
         test_vllm_config.additional_config = {
             "ascend_compilation_config": {
-                "enable_quantization_fusion": False,
+                "fuse_norm_quant": False,
             },
             "multistream_overlap_shared_expert": True,
             "expert_map_path": "test_expert_map_path",
@@ -60,7 +60,7 @@ class TestAscendConfig(TestBase):
         self.assertFalse(ascend_config.enable_npugraph_ex)
 
         ascend_compilation_config = ascend_config.ascend_compilation_config
-        self.assertFalse(ascend_compilation_config.enable_quantization_fusion)
+        self.assertFalse(ascend_compilation_config.fuse_norm_quant)
 
     @_clean_up_ascend_config
     def test_init_ascend_config_enable_npugraph_ex(self):