arm: da850-evm: Enable DM and device tree support for da850-evm

With the device tree ported and DM compatible drivers, enable:
OF_CONTROL, DM_SPI, DM_SPI_FLASH and DM_SERIAL

Note: DM_SERIAL is not enabled for da850evm_direct_nor_defconfig
yet.

Reviewed-by: Jagan Teki <jagan@openedev.com>
Signed-off-by: Adam Ford <aford173@gmail.com>
diff --git a/configs/da850evm_direct_nor_defconfig b/configs/da850evm_direct_nor_defconfig
index 24ab892..8f8bad0 100644
--- a/configs/da850evm_direct_nor_defconfig
+++ b/configs/da850evm_direct_nor_defconfig
@@ -2,6 +2,8 @@
 CONFIG_ARCH_DAVINCI=y
 CONFIG_TARGET_DA850EVM=y
 CONFIG_TI_COMMON_CMD_OPTIONS=y
+CONFIG_DEFAULT_DEVICE_TREE="da850-evm"
+# CONFIG_SYS_MALLOC_F is not set
 CONFIG_SYS_EXTRA_OPTIONS="USE_NOR,DIRECT_NOR_BOOT"
 CONFIG_BOOTDELAY=3
 CONFIG_USE_BOOTARGS=y
@@ -28,11 +30,14 @@
 # CONFIG_CMD_FAT is not set
 # CONFIG_CMD_FS_GENERIC is not set
 CONFIG_CMD_DIAG=y
+CONFIG_OF_CONTROL=y
 CONFIG_ENV_IS_IN_FLASH=y
+CONFIG_DM=y
 # CONFIG_MMC is not set
 CONFIG_MTD_NOR_FLASH=y
+CONFIG_DM_SPI_FLASH=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_STMICRO=y
 CONFIG_SPI_FLASH_WINBOND=y
 CONFIG_SYS_NS16550=y
-CONFIG_OF_LIBFDT=y
+CONFIG_DM_SPI=y