[POWERPC] MPC8568E-MDS: add support for ds1374 rtc

MPC8568E-MDS have DS1374 chip on the I2C bus, thus let's use it.
This patch also adds #address-cells and #size-cells to the I2C
controllers nodes.

p.s. DS1374 rtc class driver is in the -mm tree, its name is
rtc-rtc-class-driver-for-the-ds1374.patch.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index 91987e0..c765d7a 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/arch/powerpc/sysdev/fsl_soc.c
@@ -337,6 +337,7 @@
 	{"dallas,ds1339",  "rtc-ds1307",  "ds1339",},
 	{"dallas,ds1340",  "rtc-ds1307",  "ds1340",},
 	{"stm,m41t00",     "rtc-ds1307",  "m41t00"},
+	{"dallas,ds1374",  "rtc-ds1374",  "rtc-ds1374",},
 };
 
 static int __init of_find_i2c_driver(struct device_node *node,