[gnome-photos] flatpak: Switch tracker to Meson

[Debarshi Ray <debarshir src gnome org>]

commit 0801c9e9c84f82eb5a4ebd85bf55a107d05ed38d
Author: Debarshi Ray <debarshir gnome org>
Date:   Thu Sep 13 16:59:03 2018 +0200

    flatpak: Switch tracker to Meson
    
    The --disable-introspection build option was lost, but an option to
    disable the systemd units was gained.
    
    https://gitlab.gnome.org/GNOME/tracker/issues/37

 flatpak/org.gnome.Photos.json | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)
---
diff --git a/flatpak/org.gnome.Photos.json b/flatpak/org.gnome.Photos.json
index 85e35591..631007c8 100644
--- a/flatpak/org.gnome.Photos.json
+++ b/flatpak/org.gnome.Photos.json
@@ -255,8 +255,13 @@
         },
         {
             "name": "tracker",
-            "cleanup": [ "/bin", "/etc", "/lib/systemd", "/libexec", "/share/dbus-1/services" ],
-            "config-opts": [ "--disable-introspection", "--disable-static", "--with-bash-completion-dir=no" 
],
+            "cleanup": [ "/bin",
+                         "/etc",
+                         "/lib/girepository-1.0",
+                         "/libexec",
+                         "/share/dbus-1/services",
+                         "/share/gir-1.0" ],
+            "config-opts": [ "-Dbash_completion=no", "-Ddocs=false", "-Dsystemd_user_services=no" ],
             "sources": [
                 {
                     "type": "git",