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

* commit 'f660c7f877e74a14f9a4c24065566d8680dbb274':
  Upgrade to expat 2.1.1

Change-Id: I34072d453dc1d9740c9d57d51641ab9647ec4a8e