Corrected the value defined for LINKRATE_60 (6 Gig).
Signed-off-by: Raj Dinesh <Raj.Dinesh@microsemi.com> Signed-off-by: Viswas G <viswas.g@microsemi.com> Acked-by: Jack Wang <jinpu.wang@profitbricks.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>