Enable CONFIG_DM_ETH to remove compile warning on CM-FX6
SOM based target:
===================== WARNING ======================
This board does not use CONFIG_DM_ETH (Driver Model
for Ethernet drivers). Please update the board to use
CONFIG_DM_ETH before the v2020.07 release.
====================================================
Signed-off-by: Suniel Mahesh <sunil.m@techveda.org>
CONFIG_DM_REGULATOR=y
CONFIG_SPI=y
CONFIG_MXC_SPI=y
+CONFIG_DM_ETH=y
CONFIG_USB=y
CONFIG_DM_USB=y
CONFIG_USB_KEYBOARD=y