RTC: add support for DS1339 (using DS1307 driver)

Signed-off-by: Markus Niebel <Markus.Niebel@tq-group.com>

README

@@ -1152,6 +1152,7 @@ The following options need to be configured:
 		CONFIG_RTC_DS1307	- use Maxim, Inc. DS1307 RTC
 		CONFIG_RTC_DS1337	- use Maxim, Inc. DS1337 RTC
 		CONFIG_RTC_DS1338	- use Maxim, Inc. DS1338 RTC
+		CONFIG_RTC_DS1339	- use Maxim, Inc. DS1339 RTC
 		CONFIG_RTC_DS164x	- use Dallas DS164x RTC
 		CONFIG_RTC_ISL1208	- use Intersil ISL1208 RTC
 		CONFIG_RTC_MAX6900	- use Maxim, Inc. MAX6900 RTC

drivers/rtc/Makefile

@@ -16,6 +16,7 @@ obj-$(CONFIG_RTC_DS1302) += ds1302.o
 obj-$(CONFIG_RTC_DS1306) += ds1306.o
 obj-$(CONFIG_RTC_DS1307) += ds1307.o
 obj-$(CONFIG_RTC_DS1338) += ds1307.o
+obj-$(CONFIG_RTC_DS1339) += ds1307.o
 obj-$(CONFIG_RTC_DS1337) += ds1337.o
 obj-$(CONFIG_RTC_DS1374) += ds1374.o
 obj-$(CONFIG_RTC_DS1388) += ds1337.o

drivers/rtc/ds1307.c

@@ -9,7 +9,7 @@
 
 /*
  * Date & Time support (no alarms) for Dallas Semiconductor (now Maxim)
- * DS1307 and DS1338 Real Time Clock (RTC).
+ * DS1307 and DS1338/9 Real Time Clock (RTC).
  *
  * based on ds1337.c
  */