[Chore] Separate out hashing utilities from vllm.utils (#27151)

Signed-off-by: dongbo910220 <1275604947@qq.com>

vllm/v1/engine/core.py

@@ -30,11 +30,11 @@ from vllm.tasks import POOLING_TASKS, SupportedTask
 from vllm.transformers_utils.config import maybe_register_config_serialize_by_value
 from vllm.utils import (
     decorate_logs,
-    get_hash_fn_by_name,
     make_zmq_socket,
     set_process_title,
 )
 from vllm.utils.gc_utils import maybe_attach_gc_debug_callback
+from vllm.utils.hashing import get_hash_fn_by_name
 from vllm.utils.import_utils import resolve_obj_by_qualname
 from vllm.v1.core.kv_cache_utils import (
     BlockHash,