arm: mvebu: turris_{omnia,mox}: Enable CONFIG_NETCONSOLE

This allows to use U-Boot console on Turris devices via network.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/configs/turris_mox_defconfig b/configs/turris_mox_defconfig
index bcd3699..c1bd1de 100644
--- a/configs/turris_mox_defconfig
+++ b/configs/turris_mox_defconfig
@@ -56,6 +56,7 @@
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_ARP_TIMEOUT=200
 CONFIG_NET_RETRY_COUNT=50
+CONFIG_NETCONSOLE=y
 CONFIG_SCSI_AHCI=y
 CONFIG_AHCI_PCI=y
 CONFIG_BUTTON=y