clk: s2mps11: Add support for s2mps11

This patch adds support to register three(AP/CP/BT) buffered 32.768 KHz
outputs of mfd-s2mps11 with common clock framework.

Signed-off-by: Yadwinder Singh Brar <yadi.brar@samsung.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index cd49096..279407a 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -64,6 +64,12 @@
 	  This driver supports Silicon Labs 5351A/B/C programmable clock
 	  generators.
 
+config COMMON_CLK_S2MPS11
+	tristate "Clock driver for S2MPS11 MFD"
+	depends on MFD_SEC_CORE
+	---help---
+	  This driver supports S2MPS11 crystal oscillator clock.
+
 config CLK_TWL6040
 	tristate "External McPDM functional clock from twl6040"
 	depends on TWL6040_CORE