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

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

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I8c05660893db14945a61d6f378d28a2249f29b75