Fix lint error

Author: Joey Tsai

backends/qualcomm/quantizer/custom_annotation.py

@@ -22,7 +22,9 @@
 from torch.fx import Node
 
 
-def annotate_matmul_16a8w(gm: torch.fx.GraphModule, traverse_input1=True) -> None:
+def annotate_matmul_16a8w(
+    gm: torch.fx.GraphModule, traverse_input1=True
+) -> None:  # noqa: C901
     """
     This function is specific for matmul op 16a8w.
     """