ARM: EXYNOS: Enable iommu support for Exynos5

Signed-off-by: Rahul Sharma <Rahul.Sharma@samsung.com>
Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index 4c414af..542c31b 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -37,6 +37,7 @@
 	select HAVE_SMP
 	select PINCTRL
 	select USB_ARCH_HAS_XHCI
+	select ARM_DMA_USE_IOMMU
 	help
 	  Samsung EXYNOS5 (Cortex-A15) SoC based systems