[refact] unified soc_version code (#4359)

### What this PR does / why we need it?

Currently, there are two paths to judge the chip type in code,
`get_ascend_soc_version` use `get_soc_version` api in torch_npu, and
`is_310p` `use _build_info.__soc_version__`, which generate when
install. We need to unify the two paths.

We need to unify these codes based on the following points:

1. We need to ensure consistency in chip type judgment between compiling
and running states;
2. In compiling state, we need chip type to complete op's compilation,
but in running state, we only need device
type(910B/910_93/310P/910_95/etc) to make code branch judgement;
3. In compiling state, torch_npu may not have been installed yet, so we
can't use torch_npu's api.

Based on the above points, we have made the following changes:

1. When user set env `SOC_VERSION`, use it; when not set, query
soc_version by `npu-smi`;
2. generate device_type based on soc_version when compiling, and write
`__device_type__` instead of `__soc_version__` in `_build_info.py`;
3. In running state, use `__device_type__` to judge code branch.

### Does this PR introduce _any_ user-facing change?

When not set env `SOC_VERSION`, it will not be `ASCEND910B1` by default,
we will query soc_version by `npu-smi`. And env `SOC_VERSION` must be in
the list `soc_to_device` in `setup.py`.

- vLLM version: v0.11.0
- vLLM main:
2918c1b49c

Signed-off-by: zzzzwwjj <1183291235@qq.com>

tests/ut/ops/test_rotary_embedding.py

@@ -12,6 +12,7 @@ from vllm.platforms import CpuArchEnum
 from tests.ut.base import TestBase
 from vllm_ascend.ascend_forward_context import set_ascend_forward_context
 from vllm_ascend.ops.rotary_embedding import _custom_rotary_embedding_enabled
+from vllm_ascend.utils import AscendDeviceType
 
 MODEL = "Qwen3-0.6B"
 MODEL_VL = "Qwen/Qwen2.5-VL-3B-Instruct"
@@ -97,7 +98,8 @@ class TestAscendRotaryEmbedding(unittest.TestCase):
         self.mock_self.is_neox_style = self.is_neox_style
 
     @patch('torch.ops._C_ascend')
-    @patch('vllm_ascend.ops.rotary_embedding.is_310p', return_value=False)
+    @patch('vllm_ascend.utils.get_ascend_device_type',
+           return_value=AscendDeviceType._910_93)
     @patch('vllm_ascend.ops.rotary_embedding._custom_rotary_embedding_enabled',
            return_value=True)
     @patch('torch.ops._npu_rotary_embedding')
@@ -106,8 +108,8 @@ class TestAscendRotaryEmbedding(unittest.TestCase):
     @patch('vllm.distributed.parallel_state._DP', MagicMock(world_size=1))
     @patch('vllm.distributed.parallel_state._TP', MagicMock(world_size=1))
     def test_rope_forward_oot_custom_kernel(self, mock_rotary_embedding,
-                                            mock_custom_enabled, mock_is_310p,
-                                            mock__c):
+                                            mock_custom_enabled,
+                                            mock_soc_version, mock__c):
         mock_config = MagicMock()
         mock_config.torchair_graph_config.enabled = False