Merge "Remove write permission from file mode of top-level user dirs" am:...

Merge "Remove write permission from file mode of top-level user dirs" am: c7315030 am: 55593258 am: 0f7c1825 am: 4801c65d

Original change: https://android-review.googlesource.com/c/platform/system/vold/+/2617599



Change-Id: I039c2599039c8c46326c0c5c311b8cb4580292db
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>