Fix encrypt-and-wipe

encrypt-and-wipe was broken when checks were added that encryption succeeded
which assumed a 'normal' full encrypt traversing the device.

encrypt-and-wipe doesn't traverse, it just lays down a file system over
the encrypted device, so in this mode do not check the amount encrypted -
it will always be 0.

Bug: 18511900
Change-Id: Icb1d7e0cdb67abd2eac0ab3cbfc1a88912768f9d
1 file changed