cxgb4: do not display 50Gbps as unsupported speed

50Gbps is a supported speed, Stop reporting it as
unsupported speed.
Signed-off-by: NGanesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c

@@ -210,6 +210,9 @@ static void link_report(struct net_device *dev)
 		case 40000:
 			s = "40Gbps";
 			break;
+		case 50000:
+			s = "50Gbps";
+			break;
 		case 100000:
 			s = "100Gbps";
 			break;