[grilo-plugins] tracker: Add album artist key mapping

[Marinus Schraal <mschraal src gnome org>]

commit 780dcbc83f78d2befb984d7cbd45732ee9341706
Author: Marinus Schraal <mschraal scr gnome org>
Date:   Fri May 27 16:17:24 2016 +0200

    tracker: Add album artist key mapping
    
    Map nmm:albumArtist to GRL_METADATA_KEY_ALBUM_ARTIST.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=766587

 src/tracker/grl-tracker-utils.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/src/tracker/grl-tracker-utils.c b/src/tracker/grl-tracker-utils.c
index e631b12..2b97636 100644
--- a/src/tracker/grl-tracker-utils.c
+++ b/src/tracker/grl-tracker-utils.c
@@ -214,6 +214,11 @@ grl_tracker_setup_key_mappings (void)
                       "nmm:artistName(nmm:performer(?urn))",
                       "audio");
 
+  insert_key_mapping (GRL_METADATA_KEY_ALBUM_ARTIST,
+                      NULL,
+                      "nmm:artistName(nmm:albumArtist(nmm:musicAlbum(?urn)))",
+                      "audio");
+
   insert_key_mapping (GRL_METADATA_KEY_AUTHOR,
                       NULL,
                       "nmm:artistName(nmm:performer(?urn))",