[Serve] add allocator in Storage as the upstream change (#1997)

The changes in apache/tvm#16750
modified the signature of the Storage, this pull request updates
the caller code in mlc-llm to accommodate the new Storage
class signature. Ran into build error w/o the change.

Author: yongwww

cpp/serve/model.cc

@@ -63,8 +63,8 @@ class ModelImpl : public ModelObj {
     memory::Allocator* allocator =
         memory::MemoryManager::GetOrCreateAllocator(device_host, memory::AllocatorType::kNaive);
     ICHECK_NOTNULL(allocator);
-    token_ids_storage_ =
-        memory::Storage(allocator->Alloc(device_host, {prefill_chunk_size_}, DataType::Int(32)));
+    token_ids_storage_ = memory::Storage(
+        allocator->Alloc(device_host, {prefill_chunk_size_}, DataType::Int(32)), allocator);
     this->logit_pos_arr_ = NDArray::Empty({max_num_sequence}, DataType::Int(32), device_host);
   }