liquidio: declare liquidio_set_rxcsum_command static

liquidio_set_rxcsum_command is a local function only, no need to expose
it outside of lio_main.c so declare it static and make sparse happy.
Signed-off-by: NNicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/cavium/liquidio/lio_main.c

@@ -3190,7 +3190,7 @@ static int liquidio_vlan_rx_kill_vid(struct net_device *netdev,
  *                              OCTNET_CMD_RXCSUM_DISABLE
  * @returns                     SUCCESS or FAILURE
  */
-int liquidio_set_rxcsum_command(struct net_device *netdev, int command,
+static int liquidio_set_rxcsum_command(struct net_device *netdev, int command,
 				       u8 rx_cmd)
 {
 	struct lio *lio = GET_LIO(netdev);