kernel - Add KVABIO support to NVMe, disk translation layer, and swap
* Add KVABIO support to the NVMe driver. The driver no longer
requires that buffers be synchronized to all cpus.
* Add KVABIO support to the disk translation layer. The layer no
longer requires that buffers besynchronized to all cpus (note
however that the underlying device may still require such).
* Add KVABIO support to the swap subsystem. Again, actual avoidance
of buffer memory synchronization depends on the underlying devices.