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

build/android/pylib/base/test_dispatcher_unittest.py

Index: build/android/pylib/base/test_dispatcher_unittest.py
diff --git a/build/android/pylib/base/test_dispatcher_unittest.py b/build/android/pylib/base/test_dispatcher_unittest.py
index cace9a627a28985350d69a6729e5f0e2a2994690..1ec5f5601166a53761eaa37c84bd282725bb2acd 100755
--- a/build/android/pylib/base/test_dispatcher_unittest.py
+++ b/build/android/pylib/base/test_dispatcher_unittest.py
@@ -12,13 +12,13 @@ import sys
 import unittest
 
 
+from devil.android import device_utils
+from devil.android.sdk import adb_wrapper
+from devil.utils import watchdog_timer
 from pylib import constants
 from pylib.base import base_test_result
 from pylib.base import test_collection
 from pylib.base import test_dispatcher
-from pylib.device import adb_wrapper
-from pylib.device import device_utils
-from pylib.utils import watchdog_timer
 
 sys.path.append(
     os.path.join(constants.DIR_SOURCE_ROOT, 'third_party', 'pymock'))