Option --no-provisioning-check should store_true.

For discussion, see:
https://chromereviews.googleplex.com/9784017/

BUG=255157
NOTRY=True

Review URL: https://chromiumcodereview.appspot.com/23690004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@221439 0039d316-1c4b-4281-b951-d872f2087c98

build/android/buildbot/bb_device_status_check.py

@@ -197,7 +197,7 @@ def main():
   parser.add_option('', '--out-dir',
                     help='Directory where the device path is stored',
                     default=os.path.join(constants.DIR_SOURCE_ROOT, 'out'))
-  parser.add_option('--no-provisioning-check',
+  parser.add_option('--no-provisioning-check', action='store_true',
                     help='Will not check if devices are provisioned properly.')
   parser.add_option('--device-status-dashboard',
                     help='Output device status data for dashboard.')