[grilo-plugins] Update POTFILES.in

[Piotr Drąg <piotrdrag src gnome org>]

commit 409a59323e0153d2fe1b444939d72ad3b3d6a60d
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Mon Aug 24 17:07:52 2020 +0200

    Update POTFILES.in

 po/POTFILES.in | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 5d49f34c..80def952 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -20,6 +20,10 @@ src/raitv/grl-raitv.c
 src/shoutcast/grl-shoutcast.c
 src/thetvdb/grl-thetvdb.c
 src/tmdb/grl-tmdb.c
+src/tracker3/grl-tracker.c
+src/tracker3/grl-tracker-source-api.c
+src/tracker3/grl-tracker-source-priv.h
+src/tracker3/grl-tracker-utils.c
 src/tracker/grl-tracker.c
 src/tracker/grl-tracker-source-api.c
 src/tracker/grl-tracker-source-priv.h