ARM: S5PV210: Add IRQ_EINT interrupt support.

Add support for external interrupts on S5PV210.

Signed-off-by: Jongpill Lee <boyko.lee@samsung.com>
Signed-off-by: Pannaga Bhushan <p.bhushan@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
[ben-linux@fluff.org: Ext => IRQ_EINT in title]
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
diff --git a/arch/arm/mach-s5pv210/Kconfig b/arch/arm/mach-s5pv210/Kconfig
index 7601c28..8b9566e 100644
--- a/arch/arm/mach-s5pv210/Kconfig
+++ b/arch/arm/mach-s5pv210/Kconfig
@@ -13,6 +13,7 @@
 	bool
 	select PLAT_S5P
 	select S3C_PL330_DMA
+	select S5P_EXT_INT
 	help
 	  Enable S5PV210 CPU support