Merge "Strictly check for SELinux labelling errors" am: 5554b80afb am: d8bf3b2681 am: 2df74f43c0 am: f65f63a29c

Original change: https://android-review.googlesource.com/c/platform/system/vold/+/2456274

Change-Id: I5e0bcea1dbb2131f6da83c8ec898975147d3e01f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>