Revert "[POWERPC] Rename get_property to of_get_property: drivers"

This reverts commit d05c7a80cf39ae7d0f8d0c3e47c93d51fcd393d3,
which included changes which should go via other subsystem
maintainers.
diff --git a/drivers/char/briq_panel.c b/drivers/char/briq_panel.c
index ed53f54..c70d52a 100644
--- a/drivers/char/briq_panel.c
+++ b/drivers/char/briq_panel.c
@@ -206,7 +206,7 @@
 	const char *machine;
 	int i;
 
-	machine = of_get_property(root, "model", NULL);
+	machine = get_property(root, "model", NULL);
 	if (!machine || strncmp(machine, "TotalImpact,BRIQ-1", 18) != 0) {
 		of_node_put(root);
 		return -ENODEV;