Merge "Revert "Revert "Revert "Customize StubVolume implementation for ARC"""" am: 922af320dd am: 4e77967775 am: c2a372231f

Original change: https://android-review.googlesource.com/c/platform/system/vold/+/1554441

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I80daa969ade20d4372ca96b3d2cee95cb9831bb8