[grilo-plugins/wip/jfelder/tracker-album-title] tracker: Use the correct property to retrieve album title

[Jean Felder <jfelder src gnome org>]

commit 16e815bc0a4300bacf8b668a8c4640cd937122f7
Author: Jean Felder <jfelder src gnome org>
Date:   Sun Sep 1 14:15:08 2019 +0200

    tracker: Use the correct property to retrieve album title
    
    nmm:albumTitle is deprecated since Tracker 0.9.28. nie:title is only
    used now.

 src/tracker/grl-tracker-utils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/tracker/grl-tracker-utils.c b/src/tracker/grl-tracker-utils.c
index 70341a9e..eb012d42 100644
--- a/src/tracker/grl-tracker-utils.c
+++ b/src/tracker/grl-tracker-utils.c
@@ -241,7 +241,7 @@ grl_tracker_setup_key_mappings (void)
 
   insert_key_mapping (GRL_METADATA_KEY_ALBUM,
                       NULL,
-                      "nmm:albumTitle(nmm:musicAlbum(?urn))",
+                      "nie:title(nmm:musicAlbum(?urn))",
                       "audio");
 
   insert_key_mapping (GRL_METADATA_KEY_ALBUM_DISC_NUMBER,