Roll src/third_party/chromite da39c6d82324..a467e264db50 (2 commits)

https://chromium.googlesource.com/chromiumos/chromite.git/+log/da39c6d82324..a467e264db50

git log da39c6d82324..a467e264db50 --date=short --no-merges --format='%ad %ae %s'
2019-09-18 vapier@chromium.org image_lib: add fsync when updating filesystem superblocks
2019-09-18 vapier@chromium.org image_lib/osutils: improve debug output for image mounting

Created with:
  gclient setdep -r src/third_party/chromite@a467e264db50

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/chromite-chromium-autoroll
Please CC chrome-os-gardeners@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

CQ_INCLUDE_TRYBOTS=luci.chromium.try:chromeos-kevin-rel
TBR=chrome-os-gardeners@google.com

Bug: None
Change-Id: Ia2c39da1ce13f72b7b3b39632bbd1841cf781706
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1810178Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#697501}

DEPS

@@ -853,7 +853,7 @@ deps = {
 
   # Build tools for Chrome OS. Note: This depends on third_party/pyelftools.
   'src/third_party/chromite': {
-      'url': Var('chromium_git') + '/chromiumos/chromite.git' + '@' + 'da39c6d82324c73ed61e366486dbb81187c720aa',
+      'url': Var('chromium_git') + '/chromiumos/chromite.git' + '@' + 'a467e264db50039c5bdf1b16099168c0e0d315e1',
       'condition': 'checkout_linux',
   },