Roll Syzygy DEPS to r2000.

This brings in proper svn:executable properties for Syzygy binaries, fixing Cygwin support.

BUG=none
TEST=No more "access denied" on the swapimport step of the build on a clean
Cygwin checkout
R=pkasting@chromium.org

Review URL: https://codereview.chromium.org/142453002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245980 0039d316-1c4b-4281-b951-d872f2087c98
Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245981 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 245981