Fall back on "<no album tag>" if the file is in the root of the player and doesn't have an album tag...

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6338 a1c6a512-1295-4272-9138-f99709370657

tools/songdb.pl

@@ -181,6 +181,8 @@ sub dodir {
         # Fall back on the directory name (not full path dirname),
         # if no album tag
         $$id3{'ALBUM'} = (split m[/], $dir)[-1] if ($$id3{'ALBUM'} eq "");
+	#if that doesn't work, fall back.
+	$$id3{'ALBUM'} = "<no album tag>" if ($$id3{'ALBUM'} eq "");
         # fall back on basename of the file if no title tag.
         my $base;
         ($base = $f) =~ s/\.\w+$//;