arm: octeontx: Enable network support in supported boards

Enable the now included network drivers in the currently supported
Marvell Octeon TX & TX2 boards.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Aaron Williams <awilliams@marvell.com>
Cc: Suneel Garapati <sgarapati@marvell.com>
Cc: Chandrakala Chavva <cchavva@marvell.com>
diff --git a/configs/octeontx_81xx_defconfig b/configs/octeontx_81xx_defconfig
index 78efcf5..c006a14 100644
--- a/configs/octeontx_81xx_defconfig
+++ b/configs/octeontx_81xx_defconfig
@@ -100,6 +100,8 @@
 CONFIG_E1000=y
 CONFIG_E1000_SPI=y
 CONFIG_CMD_E1000=y
+CONFIG_NET_OCTEONTX=y
+CONFIG_OCTEONTX_SMI=y
 CONFIG_NVME=y
 CONFIG_PCI=y
 CONFIG_DM_PCI=y