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

BUG=476719

Review URL: https://codereview.chromium.org/1314313004

Cr-Commit-Position: refs/heads/master@{#347187}
diff --git a/build/android/buildbot/bb_device_steps.py b/build/android/buildbot/bb_device_steps.py
index b2eda0fa..2e4c42ef 100755
--- a/build/android/buildbot/bb_device_steps.py
+++ b/build/android/buildbot/bb_device_steps.py
@@ -18,8 +18,8 @@
 
 sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
 import provision_devices
+from devil.android import device_utils
 from pylib import constants
-from pylib.device import device_utils
 from pylib.gtest import gtest_config
 
 CHROME_SRC_DIR = bb_utils.CHROME_SRC