gnome-vfs: fix QA warnings in packaging

gnome-vfs-2.24.4: gnome-vfs: Files/directories were installed but not shipped
  /usr/lib/gnome-vfs-2.0/modules/libcomputer.la
  /usr/lib/gnome-vfs-2.0/modules/libvfs-test.a
  /usr/lib/gnome-vfs-2.0/modules/libcomputer.a
  /usr/lib/gnome-vfs-2.0/modules/libdns-sd.la
  /usr/lib/gnome-vfs-2.0/modules/libgzip.la
  /usr/lib/gnome-vfs-2.0/modules/libtar.la
  /usr/lib/gnome-vfs-2.0/modules/libsftp.la
  /usr/lib/gnome-vfs-2.0/modules/libnntp.a
  /usr/lib/gnome-vfs-2.0/modules/libhttp.la
  /usr/lib/gnome-vfs-2.0/modules/libsftp.a
  /usr/lib/gnome-vfs-2.0/modules/libftp.la
  /usr/lib/gnome-vfs-2.0/modules/libnetwork.a
  /usr/lib/gnome-vfs-2.0/modules/libbzip2.a
  /usr/lib/gnome-vfs-2.0/modules/libgzip.a
  /usr/lib/gnome-vfs-2.0/modules/libnetwork.la
  /usr/lib/gnome-vfs-2.0/modules/libfile.la
  /usr/lib/gnome-vfs-2.0/modules/libvfs-test.la
  /usr/lib/gnome-vfs-2.0/modules/libnntp.la
  /usr/lib/gnome-vfs-2.0/modules/libfile.a
  /usr/lib/gnome-vfs-2.0/modules/libftp.a
  /usr/lib/gnome-vfs-2.0/modules/libhttp.a
  /usr/lib/gnome-vfs-2.0/modules/libbzip2.la
  /usr/lib/gnome-vfs-2.0/modules/libdns-sd.a
  /usr/lib/gnome-vfs-2.0/modules/libtar.a

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>