info: Update gsd_should_ignore_unix_mount() from g-s-d master
- Use g_unix_is_system_fs_type() if a new enough GLib is available, rather than maintaining our own list of system file system types.
- List network file systems separately, since GLib doesn’t ignore them.
- Ignore some file systems by label too.
See gnome-settings-daemon!24 (merged).
Signed-off-by: Philip Withnall withnall@endlessm.com