ARM: imx: novena: Enable DM ethernet

Convert to DM ethernet to prevent board removal.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Vagrant Cascadian <vagrant@debian.org>
diff --git a/arch/arm/mach-imx/mx6/Kconfig b/arch/arm/mach-imx/mx6/Kconfig
index 811c41d..f9f576d 100644
--- a/arch/arm/mach-imx/mx6/Kconfig
+++ b/arch/arm/mach-imx/mx6/Kconfig
@@ -259,6 +259,7 @@
 config TARGET_KOSAGI_NOVENA
 	bool "Kosagi Novena"
 	select BOARD_LATE_INIT
+	select DM_ETH
 	select DM_GPIO
 	select DM_MMC
 	select DM_PCI