Add update script

Test: Ran script to update to v2.2.1
Change-Id: I663e0369508e0cc598157258f0a321b42a23fc45
1 file changed
tree: 0171119aa59673ba0e9ddcfc9a8628bac588e9af
  1. cups/
  2. filter/
  3. LICENSE.txt
  4. update_libcups.sh