Merge "second-stage-init: Don't move submounts when mounting overlayfs" into...

Merge "second-stage-init: Don't move submounts when mounting overlayfs" into main am: 475599f5 am: 6c86cb59 am: eed39549

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2845633



Change-Id: I7e0c775891a401b89cf66c4b412395c83cc3b8e1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>