Add support for "album artist" tag.
diff --git a/media/libstagefright/StagefrightMetadataRetriever.cpp b/media/libstagefright/StagefrightMetadataRetriever.cpp
index f617fe8..df6235f 100644
--- a/media/libstagefright/StagefrightMetadataRetriever.cpp
+++ b/media/libstagefright/StagefrightMetadataRetriever.cpp
@@ -308,6 +308,7 @@
         { kKeyDiscNumber, METADATA_KEY_DISC_NUMBER },
         { kKeyAlbum, METADATA_KEY_ALBUM },
         { kKeyArtist, METADATA_KEY_ARTIST },
+        { kKeyAlbumArtist, METADATA_KEY_ALBUMARTIST },
         { kKeyAuthor, METADATA_KEY_AUTHOR },
         { kKeyComposer, METADATA_KEY_COMPOSER },
         { kKeyDate, METADATA_KEY_DATE },