rtc: Enable rtc in max8925

MAX8925 is a PMIC that contains RTC component.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

drivers/rtc/Kconfig

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 2bb8a8b..6a13037 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -175,6 +175,16 @@
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-max6900.
 
+config RTC_DRV_MAX8925
+	tristate "Maxim MAX8925"
+	depends on MFD_MAX8925
+	help
+	  If you say yes here you will get support for the
+	  RTC of Maxim MAX8925 PMIC.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-max8925.
+
 config RTC_DRV_RS5C372
 	tristate "Ricoh R2025S/D, RS5C372A/B, RV5C386, RV5C387A"
 	help