USB: Add Samsung Exynos OHCI diver

This patch adds USB OHCI driver for Samsung EXYNOS SoCs.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig
index 791f11b..75823a1 100644
--- a/drivers/usb/Kconfig
+++ b/drivers/usb/Kconfig
@@ -48,6 +48,7 @@
 	default y if ARCH_DAVINCI_DA8XX
 	default y if ARCH_CNS3XXX
 	default y if PLAT_SPEAR
+	default y if ARCH_EXYNOS
 	# PPC:
 	default y if STB03xxx
 	default y if PPC_MPC52xx