export virtio_rng.h

Hello Rusty,

The entropy device was added after we exported all virtio headers. This
patch adds virtio_rng.h to the exportable userspace headers.

Signed-off-by: Christian Borntraeger <redacted>

---
 include/linux/Kbuild |    1 +
 1 file changed, 1 insertion(+)

Index: linux-2.6/include/linux/Kbuild
===================================================================

--- linux-2.6.orig/include/linux/Kbuild
+++ linux-2.6/include/linux/Kbuild

@@ -356,6 +356,7 @@ unifdef-y += virtio_balloon.h
 unifdef-y += virtio_console.h
 unifdef-y += virtio_pci.h
 unifdef-y += virtio_ring.h
+unifdef-y += virtio_rng.h
 unifdef-y += vt.h
 unifdef-y += wait.h
 unifdef-y += wanrouter.h