ARM: imx: Convert DH i.MX6 DHSOM to DM_SERIAL

Enable CONFIG_DM_SERIAL on DH i.MX6 DHSOM to convert it to DM serial .

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Fabio Estevam <festevam@denx.de>
1 file changed