arm: vybrid: Update defconfig's

Let's go with pure DT solution for board's
based on NXP/Freescale Vybrid platform.

- Merge the DT defconfig with non-DT defconfig for Toradex
  Colibri VF50/VF61 and drop the non-DT defconfig.
- Update the legacy defconfigs for NXP/Freescale VF610 Tower
  Board with DT.
- Update the legacy defconfigs for Phytec phyCORE-vybrid
  Board with DT.

Signed-off-by: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>
Acked-by: Stefan Agner <stefan.agner@toradex.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/configs/vf610twr_defconfig b/configs/vf610twr_defconfig
index d51c93b..d959293 100644
--- a/configs/vf610twr_defconfig
+++ b/configs/vf610twr_defconfig
@@ -1,8 +1,15 @@
 CONFIG_ARM=y
 CONFIG_TARGET_VF610TWR=y
+CONFIG_DM_SERIAL=y
+CONFIG_DM_GPIO=y
+CONFIG_DEFAULT_DEVICE_TREE="vf610-twr"
 CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/freescale/vf610twr/imximage.cfg,ENV_IS_IN_MMC"
 # CONFIG_CMD_IMLS is not set
+CONFIG_CMD_GPIO=y
 # CONFIG_CMD_SETEXPR is not set
+CONFIG_OF_CONTROL=y
+CONFIG_DM=y
+CONFIG_VYBRID_GPIO=y
 CONFIG_NAND_VF610_NFC=y
 CONFIG_SYS_NAND_BUSWIDTH_16BIT=y
 CONFIG_SPI_FLASH=y