Roll src/third_party/chromite c33c078292af..53ad544d73bc (7 commits)

https://chromium.googlesource.com/chromiumos/chromite.git/+log/c33c078292af..53ad544d73bc

git log c33c078292af..53ad544d73bc --date=short --first-parent --format='%ad %ae %s'
2020-01-18 cjmcdonald@chromium.org Add SDK/Unmount endpoint
2020-01-18 bpastene@chromium.org Revert "chrome_chromeos_lkgm: Skip betty & betty-pi-arc when updating the LKGM."
2020-01-17 yueherngl@google.com servo: remove 11011.B firmware branch builder
2020-01-17 lamontjones@chromium.org toolchain_util: allow editing unquoted strings
2020-01-17 cjmcdonald@chromium.org Build API: Add logic to handle toolchain changes
2020-01-17 chrome-bot@chromium.org Update config settings by config-updater.
2020-01-17 yueherngl@google.com servo: tie the build to nautlius instead of octopus

Created with:
  gclient setdep -r src/third_party/chromite@53ad544d73bc

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
Bug: None
Tbr: chrome-os-gardeners@google.com
Change-Id: Ia8b1dafc2da5d89657d3752d26b82e699dd0d9e0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2008259Reviewed-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@{#733386}

DEPS

@@ -879,7 +879,7 @@ deps = {
 
   # Build tools for Chrome OS. Note: This depends on third_party/pyelftools.
   'src/third_party/chromite': {
-      'url': Var('chromium_git') + '/chromiumos/chromite.git' + '@' + 'c33c078292af2b65a39556b80af39014b522904e',
+      'url': Var('chromium_git') + '/chromiumos/chromite.git' + '@' + '53ad544d73bcefd23e9f684e3476f9fbcf51cfc3',
       'condition': 'checkout_linux',
   },