Merge "Allow querying for fstab for a mount point with fstype" into main am:...

Merge "Allow querying for fstab for a mount point with fstype" into main am: 946a3552 am: 52e85994

Original change: https://android-review.googlesource.com/c/platform/system/core/+/3059266



Change-Id: I3b4a895d91edae46912f063ab73e09045e0e79cc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>