[POWERPC] Rename get_property to of_get_property: drivers

These are all the remaining instances of get_property.  Simple rename of
get_property to of_get_property.

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-pmu.c b/drivers/hwmon/ams/ams-pmu.c
index 1b01c21..9463e97 100644
--- a/drivers/hwmon/ams/ams-pmu.c
+++ b/drivers/hwmon/ams/ams-pmu.c
@@ -160,7 +160,7 @@
 	ams_info.bustype = BUS_HOST;
 
 	/* Get PMU command, should be 0x4e, but we can never know */
-	prop = get_property(ams_info.of_node, "reg", NULL);
+	prop = of_get_property(ams_info.of_node, "reg", NULL);
 	if (!prop) {
 		result = -ENODEV;
 		goto exit;