Merge "Display a warning message if a "lost+found" directory exists" into tm-dev am: 8cb61a62a3

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/apex/+/17944122

Change-Id: Ib7ee52a3d1fd9833c8dd4493194fc861d6b6f651
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>