am cbcb5b9a: am 323b6352: am 82e26fba: Merge "Update ub-uiautomator prebuilt for null root node workaround" into lmp-mr1-dev

* commit 'cbcb5b9a172ffc6777cf6537cfe78e5ee6c5b24f':
  Update ub-uiautomator prebuilt for null root node workaround