[Android][telemetry] Update pylib imports for modules that moved into devil.

tools/telemetry/telemetry/internal/platform/profiler/perf_profiler.py

 # Copyright 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import logging
 import os
 import re
 import signal
 import subprocess
 import sys
 import tempfile
 
-from pylib.device import device_errors  # pylint: disable=F0401
+from devil.android import device_errors  # pylint: disable=F0401
 
 from telemetry.internal.util import binary_manager
 from telemetry.core import platform
 from telemetry.internal.platform import profiler
 from telemetry.internal.platform.profiler import android_profiling_helper
 
 from pylib.perf import perf_control  # pylint: disable=F0401
 
 
 _PERF_OPTIONS = [
@@ skipping 224 matching lines @@
       if len(fields) != 5:
         continue
       period = int(fields[1])
       function = fields[4].partition(' ')[2]
       function = re.sub('<.*>', '', function)  # Strip template params.
       function = re.sub('[(].*[)]', '', function)  # Strip function params.
       period_by_function[function] = period
       if len(period_by_function) == number:
         break
     return period_by_function