2518fd3 storage: Allow creation of a LUKS using logical volume

Authored and Committed by John Ferlan 6 years ago
    storage: Allow creation of a LUKS using logical volume
    
    https://bugzilla.redhat.com/show_bug.cgi?id=1427049
    
    Use virStorageBackendCreateVolUsingQemuImg to apply the LUKS information
    to the logical volume just created.  As part of the processing of the
    lvcreate command add 2MB to the capacity to account for the LUKS header
    when it's determined that the volume desires to use encryption.