[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/net/pasemi_mac.c b/drivers/net/pasemi_mac.c
index 76fe9dd..07eb9b2 100644
--- a/drivers/net/pasemi_mac.c
+++ b/drivers/net/pasemi_mac.c
@@ -80,7 +80,7 @@
 		return -ENOENT;
 	}
 
-	maddr = get_property(dn, "mac-address", NULL);
+	maddr = of_get_property(dn, "mac-address", NULL);
 	if (maddr == NULL) {
 		dev_warn(&pdev->dev,
 			 "no mac address in device tree, not configuring\n");