odroid: defconfig: fix build break caused by missing dts

The build break was caused by one of my previous commit:
'odroid: defconfig: disable memset at malloc init'

It removes the dts from odroid defconfig - rebase mistake.
Signed-off-by: NPrzemyslaw Marczak <p.marczak@samsung.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Acked-by: NLukasz Majewski <l.majewski@samsung.com>
Acked-by: NMinkyu Kang <mk7.kang@samsung.com>

configs/odroid_defconfig

@@ -2,6 +2,7 @@ CONFIG_ARM=y
 CONFIG_ARCH_EXYNOS=y
 CONFIG_TARGET_ODROID=y
 CONFIG_OF_CONTROL=y
+CONFIG_DEFAULT_DEVICE_TREE="exynos4412-odroid"
 CONFIG_DM_I2C=y
 CONFIG_DM_I2C_COMPAT=y
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set