[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/sungem.c b/drivers/net/sungem.c
index 5da7321..4328038 100644
--- a/drivers/net/sungem.c
+++ b/drivers/net/sungem.c
@@ -2903,7 +2903,7 @@
 	struct net_device *dev = gp->dev;
 	const unsigned char *addr;
 
-	addr = get_property(gp->of_node, "local-mac-address", NULL);
+	addr = of_get_property(gp->of_node, "local-mac-address", NULL);
 	if (addr == NULL) {
 #ifdef CONFIG_SPARC
 		addr = idprom->id_ethaddr;