Commit 
db5b0ae00712 ("Merge tag 'dt' of git://git.kernel.org/.../arm-soc")
causes a duplicated build target.  This patch fixes it and sorts out the
build target alphabetically so that we can recognize something wrong
easily.
Cc: Olof Johansson <olof@lixom.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 dtb-$(CONFIG_ARCH_EXYNOS) += exynos4210-origen.dtb \
        exynos4210-smdkv310.dtb \
        exynos4210-trats.dtb \
-       exynos5250-smdk5250.dtb \
-       exynos5440-ssdk5440.dtb \
        exynos4412-smdk4412.dtb \
        exynos5250-smdk5250.dtb \
-       exynos5250-snow.dtb
+       exynos5250-snow.dtb \
+       exynos5440-ssdk5440.dtb
 dtb-$(CONFIG_ARCH_HIGHBANK) += highbank.dtb \
        ecx-2000.dtb
 dtb-$(CONFIG_ARCH_INTEGRATOR) += integratorap.dtb \