Revert "dragonboards: fstab: Mount /data as F2FS partition" am: 1033671d9c

Original change: https://android-review.googlesource.com/c/device/linaro/dragonboard/+/3018837

Change-Id: I7ecc4c09c1590991326696fcbea56362a2de3dc8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>