3e4b783 schema: Add virtio-mmio address type into RNG

Authored and Committed by mkletzan 9 years ago
    schema: Add virtio-mmio address type into RNG
    
    The "virtio-mmio" is perfectly valid address type which we parse and
    format correctly, but it's missing in our RNG schemas, hence editing a
    domain with device having such address fails the validation.
    
    Signed-off-by: Martin Kletzander <mkletzan@redhat.com>