ethtool: Add 20G bit definitions

Add 20G supported and advertising bit definitions.
20G will be supported with the 57840 chips.
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
------
 include/linux/ethtool.h |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
Signed-off-by: David S. Miller <davem@davemloft.net>

include/linux/ethtool.h

@@ -1025,6 +1025,8 @@ struct ethtool_ops {
 #define SUPPORTED_10000baseKX4_Full	(1 << 18)
 #define SUPPORTED_10000baseKR_Full	(1 << 19)
 #define SUPPORTED_10000baseR_FEC	(1 << 20)
+#define SUPPORTED_20000baseMLD2_Full	(1 << 21)
+#define SUPPORTED_20000baseKR2_Full	(1 << 22)
 
 /* Indicates what features are advertised by the interface. */
 #define ADVERTISED_10baseT_Half		(1 << 0)
@@ -1048,6 +1050,8 @@ struct ethtool_ops {
 #define ADVERTISED_10000baseKX4_Full	(1 << 18)
 #define ADVERTISED_10000baseKR_Full	(1 << 19)
 #define ADVERTISED_10000baseR_FEC	(1 << 20)
+#define ADVERTISED_20000baseMLD2_Full	(1 << 21)
+#define ADVERTISED_20000baseKR2_Full	(1 << 22)
 
 /* The following are all involved in forcing a particular link
  * mode for the device for setting things.  When getting the