Merge "overlayfs: Fix -user build break" am: 7d07586695 am: 859473ce28 am: 9f02786941 am: e2b0cbfaa2

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2222075

Change-Id: I649e8b942c1ce43456eff9481875136ab242a60f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>