dmabuf: Change a debug message

Instead of only printing the advertised dmabuf formats, print all
supported ones. This is now useful information because we will try to
use them when downloading.

Fixes me looking like I don't know what I'm talking about on IRC when
claiming that llvmpipe can't do dmabufs, because it only supports linear
ones and we didn't print those.

gdk/gdkdmabufegl.c

@@ -97,15 +97,15 @@ gdk_dmabuf_egl_downloader_collect_formats (GdkDisplay                *display,
           /* All linear formats we support are already added my the mmap downloader.
            * We don't add external formats, unless we can use them (via GLES)
            */
+          GDK_DISPLAY_DEBUG (display, DMABUF,
+                             "EGL supports %s dmabuf format %.4s:%#" G_GINT64_MODIFIER "x",
+                             external_only[j] ? "external " : "",
+                             (char *) &fourccs[i],
+                             modifiers[j]);
+
           if (modifiers[j] != DRM_FORMAT_MOD_LINEAR &&
               (!external_only[j] || gdk_gl_context_get_use_es (context)))
             {
-              GDK_DISPLAY_DEBUG (display, DMABUF,
-                                 "%s EGL dmabuf format %.4s:%#" G_GINT64_MODIFIER "x",
-                                 external_only[j] ? "external " : "",
-                                 (char *) &fourccs[i],
-                                 modifiers[j]);
-
               gdk_dmabuf_formats_builder_add_format (formats, fourccs[i], modifiers[j]);
             }
           if (!external_only[j])