ARM: S5PV210: Add clkdev support

Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 96cfea4..3118228 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -755,6 +755,7 @@
 	select ARCH_SPARSEMEM_ENABLE
 	select GENERIC_GPIO
 	select HAVE_CLK
+	select CLKDEV_LOOKUP
 	select ARM_L1_CACHE_SHIFT_6
 	select ARCH_HAS_CPUFREQ
 	select GENERIC_CLOCKEVENTS