ARM: rmobile: Enable OF_CONTROL on RCar Gen2

Since the DTs are now in place, enable OF control so that they get
bundled into the U-Boot.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/configs/gose_defconfig b/configs/gose_defconfig
index 88ef894..2c0fd0b 100644
--- a/configs/gose_defconfig
+++ b/configs/gose_defconfig
@@ -3,6 +3,7 @@
 CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_R8A7793=y
 CONFIG_TARGET_GOSE=y
+CONFIG_DEFAULT_DEVICE_TREE="r8a7793-gose-u-boot"
 CONFIG_BOOTDELAY=3
 CONFIG_VERSION_VARIABLE=y
 CONFIG_CMD_BOOTZ=y
@@ -21,6 +22,7 @@
 CONFIG_CMD_EXT4=y
 CONFIG_CMD_EXT4_WRITE=y
 CONFIG_CMD_FAT=y
+CONFIG_OF_CONTROL=y
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_BAR=y