Merge "fs_mgr: avoid std::vector<const T>" into main am: d5c75fd5 am: a26cb937

Original change: https://android-review.googlesource.com/c/platform/system/core/+/3316006



Change-Id: Ie265d50f373776203eb1546066c0a82969623f79
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>