rtc: Add twl6030 RTC support

This patch adds support for RTC in phoenix TWL6030.
Register offset addresses have changed in TWL6030
rtc-twl.c will hence forth support all twl RTC (4030, 5030, 6030 ..)

Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index f2e1004..71fbd6e 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -258,14 +258,14 @@
 	  the Menelaus driver; it's not separate module.
 
 config RTC_DRV_TWL4030
-	tristate "TI TWL4030/TWL5030/TPS659x0"
+	tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0"
 	depends on RTC_CLASS && TWL4030_CORE
 	help
 	  If you say yes here you get support for the RTC on the
-	  TWL4030 family chips, used mostly with OMAP3 platforms.
+	  TWL4030/TWL5030/TWL6030 family chips, used mostly with OMAP3 platforms.
 
 	  This driver can also be built as a module. If so, the module
-	  will be called rtc-twl4030.
+	  will be called rtc-twl.
 
 config RTC_DRV_S35390A
 	tristate "Seiko Instruments S-35390A"