Update cygwin version. New version fixes bug occuring on our bots.
Update cygwin version. New version fixes bug occuring on our bots.

BUG= http://code.google.com/p/nativeclient/issues/detail?id=1918
TEST= bots
Review URL: https://chromiumcodereview.appspot.com/10834356

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@9513 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

nacl-webkit/native_client,sbc100/native_client,sbc100/native_client,nacl-webkit/native_client,nacl-webkit/native_client,nacl-webkit/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,nacl-webkit/native_client