Revert "Arm backend: Remove pyre-unsafe from quantizer/ & backends/arm (pytorch#15374)"

This reverts commit 80b4a84.

Author: GregoryComer

backends/arm/arm_vela.py

@@ -3,6 +3,7 @@
 # This source code is licensed under the BSD-style license found in the
 # LICENSE file in the root directory of this source tree.
 
+# pyre-unsafe
 
 import os
 import struct

backends/arm/process_node.py

@@ -4,6 +4,7 @@
 # LICENSE file in the root directory of this source tree.
 #
 
+# pyre-unsafe
 from typing import Any, cast, Dict
 
 import numpy as np

backends/arm/quantizer/arm_quantizer.py

@@ -5,6 +5,7 @@
 # This source code is licensed under the BSD-style license found in the
 # LICENSE file in the root directory of this source tree.
 
+# pyre-unsafe
 
 #
 # Quantizer for Arm backend

backends/arm/quantizer/arm_quantizer_utils.py

@@ -5,6 +5,7 @@
 # This source code is licensed under the BSD-style license found in the
 # LICENSE file in the root directory of this source tree.
 
+# pyre-unsafe
 """Provide utilities for quantization annotations.
 
 Use these helpers to check and mark annotation state when working with

backends/arm/quantizer/quantization_config.py

@@ -11,6 +11,7 @@
 
 """
 
+# pyre-unsafe
 
 from dataclasses import dataclass