ARM: EXYNOS: Enable 64-bit DMA for EXYNOS5440 if LPAE is enabled

Allow 64-bit DMA addresses if LPAE is enabled on EXYNOS5440.
Signed-off-by: NThomas Abraham <thomas.ab@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

arch/arm/mach-exynos/Kconfig

@@ -92,6 +92,7 @@ config SOC_EXYNOS5440
 	bool "SAMSUNG EXYNOS5440"
 	default y
 	depends on ARCH_EXYNOS5
+	select ARCH_DMA_ADDR_T_64BIT if ARM_LPAE
 	select ARCH_HAS_OPP
 	select HAVE_ARM_ARCH_TIMER
 	select AUTO_ZRELADDR