bonding: fix 802.3ad support for 5G and 50G speeds

This patch adds [5|50] Gbps enum definition, and fixes
aggregated bandwidth calculation based on above slave links.

Fixes: c9a70d43461d ("net-next: ethtool: Added port speed macros.")
Signed-off-by: Thibaut Collet <[e-mail]>
Signed-off-by: Nicolas Dichtel <[e-mail]>
Acked-by: Andy Gospodarek <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/net/bonding/bond_3ad.c

···
 	AD_LINK_SPEED_100MBPS,
 	AD_LINK_SPEED_1000MBPS,
 	AD_LINK_SPEED_2500MBPS,
+	AD_LINK_SPEED_5000MBPS,
 	AD_LINK_SPEED_10000MBPS,
 	AD_LINK_SPEED_20000MBPS,
 	AD_LINK_SPEED_25000MBPS,
 	AD_LINK_SPEED_40000MBPS,
+	AD_LINK_SPEED_50000MBPS,
 	AD_LINK_SPEED_56000MBPS,
 	AD_LINK_SPEED_100000MBPS,
 };
···
  *     %AD_LINK_SPEED_100MBPS,
  *     %AD_LINK_SPEED_1000MBPS,
  *     %AD_LINK_SPEED_2500MBPS,
+ *     %AD_LINK_SPEED_5000MBPS,
  *     %AD_LINK_SPEED_10000MBPS
  *     %AD_LINK_SPEED_20000MBPS
  *     %AD_LINK_SPEED_25000MBPS
  *     %AD_LINK_SPEED_40000MBPS
+ *     %AD_LINK_SPEED_50000MBPS
  *     %AD_LINK_SPEED_56000MBPS
  *     %AD_LINK_SPEED_100000MBPS
  */
···
 			speed = AD_LINK_SPEED_2500MBPS;
 			break;
 
+		case SPEED_5000:
+			speed = AD_LINK_SPEED_5000MBPS;
+			break;
+
 		case SPEED_10000:
 			speed = AD_LINK_SPEED_10000MBPS;
 			break;
···
 
 		case SPEED_40000:
 			speed = AD_LINK_SPEED_40000MBPS;
+			break;
+
+		case SPEED_50000:
+			speed = AD_LINK_SPEED_50000MBPS;
 			break;
 
 		case SPEED_56000:
···
 		case AD_LINK_SPEED_2500MBPS:
 			bandwidth = nports * 2500;
 			break;
+		case AD_LINK_SPEED_5000MBPS:
+			bandwidth = nports * 5000;
+			break;
 		case AD_LINK_SPEED_10000MBPS:
 			bandwidth = nports * 10000;
 			break;
···
 			break;
 		case AD_LINK_SPEED_40000MBPS:
 			bandwidth = nports * 40000;
+			break;
+		case AD_LINK_SPEED_50000MBPS:
+			bandwidth = nports * 50000;
 			break;
 		case AD_LINK_SPEED_56000MBPS:
 			bandwidth = nports * 56000;