usbarmory: Add DM_I2C and DM_SERIAL support

Use DM_I2C and DM_SERIAL as it is now mandatory.

Signed-off-by: Andrej Rosano <andrej.rosano@withsecure.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
diff --git a/configs/usbarmory_defconfig b/configs/usbarmory_defconfig
index 66c969f..277f055 100644
--- a/configs/usbarmory_defconfig
+++ b/configs/usbarmory_defconfig
@@ -29,7 +29,7 @@
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_USE_HOSTNAME=y
 CONFIG_HOSTNAME="usbarmory"
-CONFIG_SYS_I2C_LEGACY=y
+CONFIG_DM_I2C=y
 CONFIG_SYS_I2C_MXC=y
 CONFIG_FSL_IIM=y
 CONFIG_FSL_ESDHC_IMX=y
@@ -39,6 +39,7 @@
 CONFIG_DM_REGULATOR=y
 CONFIG_DM_REGULATOR_FIXED=y
 CONFIG_DM_REGULATOR_GPIO=y
+CONFIG_DM_SERIAL=y
 CONFIG_MXC_UART=y
 CONFIG_USB=y
 CONFIG_USB_EHCI_MX5=y