Replace cogl_color_set_from_* with cogl_color_init_from_*

The former is not yet "officially" deprecated by the latter, but it's
confusing to have them both in the code base.

clutter/cogl/pango/cogl-pango-render.c

@@ -569,11 +569,11 @@ cogl_pango_renderer_set_color_for_part (PangoRenderer   *renderer,
     {
       CoglColor color;
 
-      cogl_color_set_from_4ub (&color,
-                               pango_color->red >> 8,
-                               pango_color->green >> 8,
-                               pango_color->blue >> 8,
-                               0xff);
+      cogl_color_init_from_4ub (&color,
+                                pango_color->red >> 8,
+                                pango_color->green >> 8,
+                                pango_color->blue >> 8,
+                                0xff);
 
       _cogl_pango_display_list_set_color_override (priv->display_list, &color);
     }