ARM: S5PV310: Add support RTC

This patch adds support RTC for S5PV310 and S5PC210.

Signed-off-by: Changhwan Youn <chaos.youn@samsung.com>
Signed-off-by: Jemings Ko <jemings@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
diff --git a/arch/arm/mach-s5pv310/clock.c b/arch/arm/mach-s5pv310/clock.c
index 32146db..58c9d33 100644
--- a/arch/arm/mach-s5pv310/clock.c
+++ b/arch/arm/mach-s5pv310/clock.c
@@ -472,6 +472,11 @@
 		.enable		= s5pv310_clk_ip_peril_ctrl,
 		.ctrlbit	= (1 << 15),
 	}, {
+		.name		= "rtc",
+		.id		= -1,
+		.enable		= s5pv310_clk_ip_perir_ctrl,
+		.ctrlbit	= (1 << 15),
+	}, {
 		.name		= "watchdog",
 		.id		= -1,
 		.enable		= s5pv310_clk_ip_perir_ctrl,