Upgrade to expat 2.1.1 am: c05e032be5 am: 095459e694 am: f660c7f877
am: 3b539e5853

* commit '3b539e585367507a039ae86f91747dc05b659139':
  Upgrade to expat 2.1.1

Change-Id: I64ae175b4e0cf45540992005635a679d279fd0d8