[Android] Prepare build/android/ for catapult+devil.

build/android/avd.py

Index: build/android/avd.py
diff --git a/build/android/avd.py b/build/android/avd.py
index 841741032de46d2274a5f2b73ac9eff2f6e45665..da7115dd987e0af9e8e711792f6ef17e3b884d40 100755
--- a/build/android/avd.py
+++ b/build/android/avd.py
@@ -14,6 +14,7 @@ import os
 import re
 import sys
 
+import devil_chromium
 import install_emulator_deps
 
 from devil.utils import cmd_helper
@@ -61,6 +62,8 @@ def main(argv):
 
   logging.root.setLevel(logging.INFO)
 
+  devil_chromium.Initialize()
+
   if arguments.command == 'kill':
     logging.info('Killing all existing emulator and existing the program')
     emulator.KillAllEmulators()