mic/host: fix up virtio 1.0 APIs
mic/host: fix up virtio 1.0 APIs

This just makes code sparse-clean by using
new memory access APIs in one file I missed.
The new feature bit is not yet negotiated.

Signed-off-by: Michael S. Tsirkin <255103e50249e3d658441816e0597170ebfc16ef@redhat.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs