ARM: EXYNOS: Enable ARCH_SUPPORTS_BIG_ENDIAN explicitly

Now the initial fixes have the big-endian code working on EXYNOS, make sure
we explicitly mark our arch as being big endian capable.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index 8f820de..b085855 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -12,6 +12,7 @@
 	depends on ARCH_MULTI_V7
 	select ARCH_HAS_BANDGAP
 	select ARCH_HAS_HOLES_MEMORYMODEL
+	select ARCH_SUPPORTS_BIG_ENDIAN
 	select ARM_AMBA
 	select ARM_GIC
 	select COMMON_CLK_SAMSUNG