re #13879 make libsqlite a real shared lib (tweaks)
  Fix rebuild after pull (remove files left in the way)
  Make sqlite.h SQLITE_VERSION more predictable.
OS-5 Integrate virtio drivers
    integration cleanup (copyrights, cddl 1.0)
port of illumos-1562
    1562 Integrate the virtio core module
    Reviewed by: Dmitry Yusupov <Dmitry.Yusupov@nexenta.com>
    Reviewed by: Gordon Ross <gordon.w.ross@gmail.com>
    Approved by: Garrett D'Amore <garrett@damore.org>

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