ARM: EXYNOS4: Update clocks for keypad

The keypad IF on EXYNOS4 uses 100MHz from PERIR functional
block for clocks, this patch updates the same.
Signed-off-by: NNaveen Krishna Ch <ch.naveen@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

arch/arm/mach-exynos4/clock.c

@@ -488,6 +488,11 @@ static struct clk init_clocks_off[] = {
 		.id		= -1,
 		.enable		= exynos4_clk_ip_peril_ctrl,
 		.ctrlbit	= (1 << 15),
+	}, {
+		.name		= "keypad",
+		.id		= -1,
+		.enable		= exynos4_clk_ip_perir_ctrl,
+		.ctrlbit	= (1 << 16),
 	}, {
 		.name		= "rtc",
 		.id		= -1,