update rocm_flash_attn.py

vllm/attention/backends/rocm_flash_attn.py

@@ -189,7 +189,7 @@ class ROCmFlashAttentionMetadata(AttentionMetadata, PagedAttentionMetadata):
             encoder_seq_lens_tensor=self.encoder_seq_lens_tensor,
             max_encoder_seq_len=self.max_encoder_seq_len,
             cross_slot_mapping=self.cross_slot_mapping,
-            cross_block_tables=self.cross_block_tables
+            cross_block_tables=self.cross_block_tables,
             tree_attention_masks_tensor=self.tree_attention_masks_tensor,
             block_tables_list=self.block_tables_list)
         return self._cached_prefill_metadata