Update chromite dependency to 1ae4638a.

BUG=403571
TBR=davemoore@chromium.org

Review URL: https://codereview.chromium.org/470953005

Cr-Commit-Position: refs/heads/master@{#291406}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@291406 0039d316-1c4b-4281-b951-d872f2087c98

DEPS

@@ -482,7 +482,7 @@ deps_os = {
     # Build tools for Chrome OS.
     "src/third_party/chromite":
       Var("chromiumos_git") + "/chromite.git" +
-      "@22f6c5af84990b8a618b4bce803082b6f63c821d",
+      "@1ae4638a4cd3313799f2d2598c39ff0e8941aef6",
 
     # Dependency of chromite.git.
     "src/third_party/pyelftools":