ixgbe: add MAC and PHY support for x540

Adds the new x540.c file and Aquantia 1202 PHY for X540 support.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 6e56f7b..94c30b4 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -59,6 +59,7 @@
 static const struct ixgbe_info *ixgbe_info_tbl[] = {
 	[board_82598] = &ixgbe_82598_info,
 	[board_82599] = &ixgbe_82599_info,
+	[board_X540] = &ixgbe_X540_info,
 };
 
 /* ixgbe_pci_tbl - PCI Device ID Table