[Android] Fix time zone handling when setting the date in provision_devices.

build/android/provision_devices.py

Index: build/android/provision_devices.py
diff --git a/build/android/provision_devices.py b/build/android/provision_devices.py
index 3d5ad7423bf8fb7521b755ad4a5bb1564668d836..8890fc0df2ad77b2b2ac78c6d65fae2d6a903082 100755
--- a/build/android/provision_devices.py
+++ b/build/android/provision_devices.py
@@ -369,16 +369,16 @@ def FinishProvisioning(device, options):
   def _set_and_verify_date():
     if device.build_version_sdk >= version_codes.MARSHMALLOW:
       date_format = '%m%d%H%M%Y.%S'
-      set_date_command = ['date']
+      set_date_command = ['date', '-u']

[ghost stip (do not use), 2016/05/13 20:32:48]

do we need to mirror this logic in https://goto.google.com/ldsfv ?

     else:
       date_format = '%Y%m%d.%H%M%S'
-      set_date_command = ['date', '-s']
+      set_date_command = ['date', '-u', '-s']
     strgmtime = time.strftime(date_format, time.gmtime())
     set_date_command.append(strgmtime)
     device.RunShellCommand(set_date_command, as_root=True, check_return=True)
 
     device_time = device.RunShellCommand(
-        ['date', '+"%Y%m%d.%H%M%S"'], as_root=True,
+        ['date', '-u', '+"%Y%m%d.%H%M%S"'], as_root=True,
         single_line=True).replace('"', '')
     device_time = datetime.datetime.strptime(device_time, "%Y%m%d.%H%M%S")
     correct_time = datetime.datetime.strptime(strgmtime, date_format)