sparc64: specify the device class in VIO version info. packet

Specify the class of VIO device in the version info. packet. The device's
class identifies the type of VIO device, whether it's DISK, CONSOLE,
NETWORK, etc... This packet is used in the handshake between the
client and server for this device.
Signed-off-by: NJagannathan Raman <jag.raman@oracle.com>
Reviewed-by: NLiam Merwick <liam.merwick@oracle.com>
Reviewed-by: NShannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

arch/sparc/kernel/viohs.c

@@ -286,6 +286,7 @@ static int process_ver_info(struct vio_driver_state *vio,
 			ver.minor = vap->minor;
 		pkt->minor = ver.minor;
 		pkt->tag.stype = VIO_SUBTYPE_ACK;
+		pkt->dev_class = vio->dev_class;
 		viodbg(HS, "SEND VERSION ACK maj[%u] min[%u]\n",
 		       pkt->major, pkt->minor);
 		err = send_ctrl(vio, &pkt->tag, sizeof(*pkt));