Fixes the "format_volume: failed to open /efs/metadata" error on recovery
while trying to wipe user data
Change-Id: Ic3f72d72fc34495ec05deffd8aa849bcfa65b29c
The DISCARD mount option should not be enabled in Android 4.3
and later for partitions that the OS trims automatically.
The presence of this option slows down the device.
Change-Id: Id61f64455190f5be6b12ee9027a996de66ec67a0
preload is a useless partition and can be fotmatted as swap or other filesystem
different from ext4. In this case 'mount_all' will fail, leaving data unmounted
Change-Id: I37b81680f0e37590e6cd5142fa1950cd5ba90960
