Convert CONFIG_RTC_DS1337 et al to Kconfig

This converts the following to Kconfig:
   CONFIG_RTC_DS1337
   CONFIG_RTC_DS1337_NOOSC
   CONFIG_RTC_DS1338
   CONFIG_RTC_DS1374
   CONFIG_RTC_DS3231
   CONFIG_RTC_MC13XXX
   CONFIG_RTC_MXS
   CONFIG_RTC_PT7C4338

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 2396327..b698722 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -68,9 +68,38 @@
 	bool "Enable DS1307 driver"
 	depends on DM_RTC
 	help
-	  Support for Dallas Semiconductor (now Maxim) DS1307 and DS1338/9 and
+	  Support for Dallas Semiconductor (now Maxim) DS1307 and DS1339 and
 	  compatible Real Time Clock devices.
 
+config RTC_DS1337
+	bool "Enable DS1337 driver"
+	help
+	  Support for Dallas Semiconductor (now Maxim) DS1337/8/9 compatible
+	  Real Time Clock devices.
+
+config RTC_DS1337_NOOSC
+	bool "Enable support for no oscillator output in DS1337 driver"
+	depends on RTC_DS1337
+
+config RTC_DS1338
+	bool "Enable DS1338 driver"
+	help
+	  Support for Dallas Semiconductor (now Maxim) DS1338 and compatible
+	  Real Time Clock devices.
+
+config RTC_DS1374
+	bool "Enable DS1374 driver"
+	depends on !DM_RTC
+	help
+	  Support for Dallas Semiconductor (now Maxim) DS1374 and compatible
+	  Real Time Clock devices.
+
+config RTC_DS3231
+	bool "Enable DS3231 driver"
+	help
+	  Support for Dallas Semiconductor (now Maxim) DS3231 compatible
+	  Real Time Clock devices.
+
 config RTC_DS3232
 	bool "Enable DS3232 driver"
 	depends on DM_RTC
@@ -111,6 +140,9 @@
 	  If you say yes here you get support for the Philips PCF8563 RTC
 	  and compatible chips.
 
+config RTC_PT7C4338
+	bool "Enable Pericom Technology PT7C4338 RTC driver"
+
 config RTC_RV3028
 	bool "Enable RV3028 driver"
 	depends on DM_RTC
@@ -169,6 +201,10 @@
 	help
 	  Enable s35392a driver which provides rtc get and set function.
 
+config RTC_MC13XXX
+	bool "Enable MC13XXX RTC driver"
+	depends on !DM_RTC
+
 config RTC_MC146818
 	bool "Enable MC146818 driver"
 	help
@@ -185,6 +221,10 @@
 	hex "Base address for RTC in immap.h"
 	depends on MCFRTC
 
+config RTC_MXS
+	bool "Enable i.MXS RTC driver"
+	depends on ARCH_MX23 || ARCH_MX28
+
 config RTC_M41T62
 	bool "Enable M41T62 driver"
 	help