Merge "Add interfaces required by smart idle maintenance service" am: 6845e06ab9 am: c0c12f5706 am: 73876a2c28

Original change: https://android-review.googlesource.com/c/platform/system/vold/+/1936286

Change-Id: Ia340061d36de6521795e96e0305f3a7cfe7a1d32