ARM: OMAP4: enable big endian support

Previous patches fixed big endian issues in OMAP4 code,
so mark it as one that supports big endian

Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Signed-off-by: Taras Kondratiuk <taras.kondratiuk@linaro.org>
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 0af7ca0..d3e641e 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -45,6 +45,7 @@
 	select USB_ARCH_HAS_EHCI if USB_SUPPORT
 	select ARM_ERRATA_754322
 	select ARM_ERRATA_775420
+	select ARCH_SUPPORTS_BIG_ENDIAN
 
 config SOC_OMAP5
 	bool "TI OMAP5"