[Build] Add build info (#1386)

Add static build_info py file to show soc and sleep mode info. It helps
to make the code clean and the error info will be more friendly for
users

This PR also added the unit test for vllm_ascend/utils.py

This PR also added the base test class for all ut in tests/ut/base.py

Signed-off-by: wangxiyuan <wangxiyuan1007@gmail.com>

vllm_ascend/patch/platform/patch_common/patch_distributed.py

@@ -23,7 +23,7 @@ import vllm.distributed
 import vllm.envs as envs
 from vllm.config import ParallelConfig
 
-from vllm_ascend.utils import NullHandle, is_310p
+from vllm_ascend.utils import is_310p
 
 
 def ascend_destroy_model_parallel():
@@ -66,6 +66,15 @@ vllm.distributed.parallel_state.destroy_model_parallel = ascend_destroy_model_pa
 ParallelConfig.get_next_dp_init_port = parallel_config_get_dp_port
 
 
+class NullHandle:
+
+    def __init__(self):
+        pass
+
+    def wait(self):
+        pass
+
+
 def communication_adaptation_310p():
 
     def broadcast310p(tensor, src, group=None, async_op=False):