[POWERPC] get_property returns const

This just tidies up some of the remains.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/drivers/hwmon/ams/ams-i2c.c b/drivers/hwmon/ams/ams-i2c.c
index 0d24bdf..485d333 100644
--- a/drivers/hwmon/ams/ams-i2c.c
+++ b/drivers/hwmon/ams/ams-i2c.c
@@ -263,7 +263,7 @@
 {
 	char *tmp_bus;
 	int result;
-	u32 *prop;
+	const u32 *prop;
 
 	mutex_lock(&ams_info.lock);
 
@@ -276,7 +276,7 @@
 	ams_info.bustype = BUS_I2C;
 
 	/* look for bus either using "reg" or by path */
-	prop = (u32*)get_property(ams_info.of_node, "reg", NULL);
+	prop = get_property(ams_info.of_node, "reg", NULL);
 	if (!prop) {
 		result = -ENODEV;