[DM/FEATURE] Support clock subprobe in OFW

Signed-off-by: GuEe-GUI <2991707448@qq.com>

components/drivers/core/platform_ofw.c

@@ -267,6 +267,12 @@ static int platform_ofw_device_probe(void)
             rt_ofw_node_put(node);
         }
 
+        if ((node = rt_ofw_find_node_by_path("/clocks")))
+        {
+            platform_ofw_device_probe_once(node);
+            rt_ofw_node_put(node);
+        }
+
         rt_ofw_node_get(ofw_node_chosen);
         if ((node = rt_ofw_get_child_by_compatible(ofw_node_chosen, "simple-framebuffer")))
         {