Merge "fs_mgr: Refactor fs_mgr_overlayfs_already_mounted() to be more...

Merge "fs_mgr: Refactor fs_mgr_overlayfs_already_mounted() to be more readable" into main am: 9603a829 am: fd742433 am: 0de639dc am: 309e38e6

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2745620



Change-Id: I2740f451cc9f4ebd1169ba77bd86c94d170e57d7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>