Merge "remount: Remove errno interaction from fs_mgr_overlayfs_teardown." am:...

Merge "remount: Remove errno interaction from fs_mgr_overlayfs_teardown." am: eec8932c am: 81e9c6ad am: 93f8fc11 am: e8a993cf

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2176922



Change-Id: Ifb6d6f3d03a587cfa58c3a6f65c304c8c48cb1b0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>