Merge "libfscrypt: drop a local UAPI definition" am: 6291e18976 am: 083fc26f38 am: 1f7bb1d1bf

Original change: https://android-review.googlesource.com/c/platform/system/extras/+/1364947

Change-Id: I68c209e93d4cd794fdf25bcb569998727fc354cb